# SheetAgent for Civil 3D by Setline: Full Reference This is the exhaustive companion to /llms.txt. It includes the product narrative, the full Frequently Asked Questions verbatim, summaries of the legal documents, and the blog index. Concise version at /llms.txt. Build a complete sheet set in one pass. Keep it correct when the design changes. Bring your existing drawings along instead of starting over. SheetAgent for Civil 3D is a focused layout tool for Autodesk Civil 3D 2025 and 2026. It does one job, does it simply, and a civil designer can learn it in minutes. It is built by Setline, Inc., a software company in San Francisco, and is tested daily on real civil infrastructure projects. ## What it does SheetAgent for Civil 3D builds two kinds of main sheets: single-viewport sheets (one main plan viewport, such as grading or site layouts) generated four ways (array, path, alignment, or free placement), and multi-viewport sheets that pair main viewports (plan and plan, plan and profile, plan and duplicate). SheetAgent also adds support viewports (legends, keynotes, key maps) to any sheet. It also imports PDF pages from any document, sorts and assembles them into layouts, builds project keyplans for multi-file coordination, and splits profile views so early-stage profile work carries forward, with split profile views staying synced to the main design profile and to the plan views. Every tile stays editable in model space after generation. Move, rotate, or reshape a tile and the layout follows. Edit shared layout behavior once on the canvas and apply it across the whole set, instead of repeating the same fix sheet by sheet. Viewport titles, matchlines, profile views, support views, and standards stay linked as the design evolves. Sheet production is not a one-time event. A set gets built, the design moves, the set has to follow, and someone has to catch what drifted before it ships. SheetAgent handles that whole arc: build the set in one pass, edit it freely afterward, update it against new geometry instead of rebuilding, and audit it for drift with the Health dashboard before the set ships. It works on new drawings and on sheets that were drafted by hand long before the tool arrived. That is the difference between a set that is generated once and forgotten, and a set that stays honest for the life of the project. ## Simple, with minimal training Every main command opens a dedicated dialog with labeled sections, named fields, units shown inline, and guidance right where the input is (for example, the maximum value for a given scale shown next to the field that needs it). A designer fills the dialog, clicks Apply, and sees the result on screen. There is nothing to memorize, no command-line sequences, and no dynamic input prompts to read. The practical effect is that bringing a new user up to speed takes minutes, not hours, and input errors drop because the dialog tells the user what each field expects. ## New drawings or existing ones SheetAgent for Civil 3D works on a fresh model and on sheets that were drafted by hand long before the tool arrived. Adopt Existing Layouts, currently in beta, scans a manually produced drawing, detects its main viewports, support viewports such as legends and key maps, and title block attributes, then brings the drawing under the SheetAgent data model. From that point, Build, Update, and Health all work on it. Firms do not have to abandon legacy projects to get the benefit. Adoption is in beta while Setline tests it across drawing styles. ## Core capabilities - **Four sheet-generation modes**: array (tile a closed boundary), path (run sheets along a polyline), alignment-based (sheets follow stationing), and free placement (click-to-preview anywhere in model space) - **Editable tiles in model space**: move, rotate, reshape, or adjust coverage after generation; the layout follows the tile - **Layout canvas**: edit shared layout behavior once and apply across the managed set, instead of repeating the same fix sheet by sheet - **Single viewport plan sheets** with array, path, alignment, and free placement modes - **Multi-viewport sheets** with plan and plan, plan and profile (multiple alignments supported), and plan and duplicate sub-modes - **PDF Details import** to build sheets from existing PDF pages - **Key Plans** for multi-file project coordination, using a control drawing that aggregates subset DWGs - **Matchlines** that are dynamic and redraw automatically whenever a tile changes, with no manual approve or reject step - **Keymaps** that highlight the current tile on each sheet, with hatch and label control - **Support Blocks**, north arrow and scale bar, placed and auto-scaled per viewport - **Support Viewports** for repeating content such as legends, created per sheet - **Title Block automation** with Sheet Set Manager field detection - **Sheet Set Manager integration** with creation and bidirectional sync - **North arrow intelligence** with verify, accept, and revert controls - **Viewport trim at matchline** using pure undo, with no destructive edits - **Renumber** for non-destructive sheet renumbering - **Adopt Existing Layouts** (beta) to bring hand-drafted sheets under management for Build, Update, and Health - **Company Standards**, a downloadable XLSX where a CAD manager defines the firm's layer names, colors, and linetypes once. SheetAgent applies them to every layout it produces. Setup takes about two minutes - **Dialog-driven configuration** for every command - **Full dynamic edits**, so any action can be revised after the fact without redoing prior work - **Layer control that respects ownership**: the tool standardizes the layers it creates and never overrides layers a user made or edited by hand - **Health dashboard** with contextual remediation actions - **CSV import** for bulk sheet definitions ## Return on investment Early trial telemetry indicates on the order of 95 labor hours saved per seat per year. Valued at a $100 per hour loaded labor rate, that is roughly $9,500 per seat, several times the annual subscription at every tier. The figures are deliberately conservative. Per-command time savings are capped at 1 to 15 minutes and are not adjustable by the customer, so the per-command rate is a floor rather than an estimate. Total hours saved scale with each team's actual command volume, which the Manager Portal at manage.setline.ai computes live from real usage rather than a vendor projection. CAD managers set their own labor rate and see their own team's return. ## Field results (customer case study) A California civil engineering firm ran SheetAgent for Civil 3D on live project work over eight weeks in spring 2026, on five seats. Measured by Manager Portal telemetry: - 1,952 command runs across 71 working sessions - 498 sheet layouts built - 273 layouts updated - 1,941 layout audits (layouts checked against source and updated or confirmed correct) - Estimated 186 hours saved, roughly $18,600 in billable time at a $100 per hour rate During the trial period the firm's engineers independently estimated their own time savings, before seeing any telemetry, and their estimate landed in the same range as the telemetry-based calculation, two independent views converging on the same number. Methodology: estimated hours = command runs x published minutes-per-run, summed across value-bearing commands. These figures count only layout build and update operations; they exclude layer management, support viewports, key maps, and exhibit workflows, so actual savings are higher. The largest savings drivers were sheet updates (UPDATE_SHEETS), sheet builds (BUILD_SHEETS), and matchline updates. The separately quoted figure of about 95 hours saved per seat per year is the conservative cross-customer floor; these case-study numbers reflect one firm's measured eight-week period. The firm is not named because Setline customers consider the tool a competitive advantage and asked not to be identified. The numbers come directly from the same Manager Portal reporting every customer receives at manage.setline.ai. ## Pricing Sold as an annual subscription, priced per seat, with a marginal volume discount applied seat by seat: - Seats 1 to 25: $899 per seat per year - Seats 26 to 50: $799 per seat per year - Seats 51 to 75: $699 per seat per year - Seats 76 and up: enterprise pricing on request A 30-seat firm pays 25 x $899 plus 5 x $799, or $26,470 per year. A 50-seat firm pays $42,450. A 75-seat firm pays $59,925. Seats are transferable between users within an organization, with a 12-hour cooldown on reassignment. Annual expiry is unified across the organization, and additional seats are prorated to the renewal date. ## Trial A 15-day full-feature trial, no credit card and no contract, provisioned with up to 50 seats for evaluation. Trial requests are processed by company domain. ## Supported software - Autodesk Civil 3D 2025 - Autodesk Civil 3D 2026 SheetAgent for Civil 3D runs as a plugin inside Civil 3D and requires Civil 3D as the host application. It does not require design objects such as alignments, profiles, or corridors to be present. Array, path, and free placement modes work on geometry alone. Alignment-based modes use Civil 3D alignments when the workflow calls for them, but alignments are not a prerequisite for using the tool. ## Data and privacy SheetAgent for Civil 3D runs locally on the workstation and does not transmit drawing files, drawing content, or project data to Setline's servers at any time. Telemetry is limited to command names run, layout counts, plugin version, anonymous session identifiers, the email signed into the plugin, and diagnostic exception messages. ## Who it is for Civil engineering firms producing plan, profile, and detail sheets in Civil 3D. Typical users are drafters and designers. Typical buyers are CAD managers, IT leads, or project principals. Firm sizes from solo practitioners to multi-office enterprises are supported. # Frequently Asked Questions Everything below applies to the current release, version 2.0, for Autodesk Civil 3D 2025 and 2026. ## Getting started **What is SheetAgent for Civil 3D?** A focused layout tool that runs inside Civil 3D. It builds complete sheet sets in one pass, updates them when the design changes, and audits them for drift between the model and the published sheets. It works on new drawings and on sheets you have already drafted by hand. **Is there a free trial?** Yes. A 15-day full-feature trial with no credit card and no contract, provisioned with up to 50 seats so a whole team can evaluate it. **Is it hard to learn?** No, and the evidence is concrete rather than a claim. At the first firm to trial it, a one-hour walkthrough of single-viewport sheets was enough for the team to go and build 128 layouts on their own. Multi-viewport sheets took about another 30 minutes. Beyond that, they leaned on the training videos and self-served. Total guided time across the whole firm came to roughly three hours. Every command runs through a dialog that names each field, shows units inline, and tells you what a valid value is, so there is nothing to memorize and no command-line workflow to learn. **Is it worth trying?** The trial is 15 days, free, no card, and your whole team can be on it. The honest test is one real project: adopt or build a set, change the design, and watch it update instead of rebuild. For reference, the first team to trial it built 128 layouts after a single one-hour walkthrough. If your sheet work gets faster during the trial, the value is clear by the end of it. If it does not, you have lost nothing. **Has SheetAgent been used on real projects?** Yes. A California civil engineering firm ran it on live project work for eight weeks across five seats. Manager Portal telemetry recorded 498 sheet layouts built, 273 updated, and 1,941 layout audits, for an estimated 186 hours saved, roughly $18,600 in billable time at a $100 per hour rate. The firm's own estimate of time saved, made before seeing any telemetry, landed in the same range. The firm asked not to be identified; the numbers come from the same Manager Portal reporting every customer receives. **Is SheetAgent right for me, or is it more than I need?** It is built for one thing: producing and maintaining sheet sets in Civil 3D. It is strongest at the work that comes after the first set, updating, auditing for drift, and adopting existing drawings, and it does that without a steep learning curve. It is not a design suite. It does not grade, model corridors, or design pipe networks. If you want sheet automation a team can pick up quickly, it fits. If you are shopping for an all-in-one design package, it is not that. **How do I get it running?** Sign up with your work email and you are granted access automatically. The portal then walks you through the download and setup, and you are ready to build on your first project. Sign-ups from personal email domains, like gmail.com, go through a short manual review first. **Can we get training during the trial?** Yes. Reach out and a session can be arranged. Most teams also find the walkthrough videos enough to get going on their own, so training is there if you want a hand, not a hoop to clear first. ## Compatibility **Which versions of Civil 3D are supported?** Civil 3D 2025 and 2026. **Does it work with plain AutoCAD?** No. SheetAgent for Civil 3D requires Civil 3D as the host application. **Do I need alignments, profiles, or corridors in the drawing?** No. Array, path, and free placement modes work on geometry alone. Alignment-based modes use Civil 3D alignments when the workflow calls for them, but alignments are not required to use the tool. **Does it work on drawings I have already drafted?** Yes. Adopt Existing Layouts, currently in beta, scans a hand-drafted drawing, detects its main viewports, support viewports such as legends and key maps, and title block attributes, then brings it under management so Build, Update, and Health all work on it. You do not have to start legacy projects over. We are still testing adoption across drawing styles, which is why it carries the beta label. ## Using it **How does SheetAgent help compared to laying out sheets by hand?** Manual layout is fine for a handful of sheets. The cost shows up at scale and over time: every viewport placed, scaled, and labeled by hand, every title block filled in, and then every one of those touched again each time the design moves. SheetAgent builds the whole set in one pass, support content included, and when the design changes it updates the set instead of making you redo the work. The hand work that does not scale is the work it removes, and a Health audit catches what drifted so nothing slips through on a manual pass. **What kinds of sheets can it produce?** Single viewport plan sheets, multi-viewport sheets (plan and plan, plan and profile with multiple alignments, plan and duplicate), PDF detail compilations, and multi-file key plans coordinated through a control drawing. Plan, profile, key map, and detail viewports can sit together on one sheet. **What happens when my design changes?** The set updates against the new geometry and keeps the work already done. There is no rebuild from scratch and no lost progress. **Will it overwrite my manual work?** No. SheetAgent standardizes only the layers and elements it creates and never touches anything you made or edited by hand. When it detects a difference between the model and a sheet, it flags it in the Health dashboard and leaves the decision to you: accept, re-sync, or leave it. **What is the Health dashboard?** A standing audit that compares the model against the published sheets and flags anything that has drifted, with one-click remediation where appropriate. It is how you catch problems before a set ships rather than after. **Can I enforce our firm's CAD standards?** Yes. Company Standards is a downloadable XLSX where a CAD manager defines the firm's layer names, colors, and linetypes once. SheetAgent applies them to every layout it produces. Setup takes about two minutes. If the standard changes later, the Health dashboard flags drifted layouts and you restandardize the owned layers in one action. **Can I undo or edit something after the fact?** Yes. Any action can be revised later without redoing prior work. Viewport trims use pure undo with no destructive edits. ## Pricing and licensing **How much does it cost?** Annual subscription, priced per seat with a volume discount applied seat by seat: - Seats 1 to 25: $899 per seat per year - Seats 26 to 50: $799 per seat per year - Seats 51 to 75: $699 per seat per year - Seats 76 and up: enterprise pricing on request As an example, a 30-seat firm pays $26,470 per year and a 50-seat firm pays $42,450. **Is it a subscription or a one-time purchase?** An annual subscription. **Can I move a seat from one person to another?** Yes. A manager can reassign a seat to a new user, with a 12-hour cooldown between reassignments. Seat expiry is unified across the organization, and additional seats are prorated to the renewal date. **We have more than 75 seats. What then?** Contact sales@setline.ai for enterprise pricing. ## Security and IT **Does it send my drawing data to the cloud?** No. SheetAgent for Civil 3D runs locally on the workstation and never transmits drawing files, drawing content, or project data to Setline's servers. **What information is collected?** Telemetry is limited to command names run, layout counts, plugin version, an anonymous session identifier, the email signed into the plugin, and diagnostic exception messages. Nothing from the drawing itself. **How do managers see usage?** Each organization gets a Manager Portal at manage.setline.ai showing live usage by command type and the resulting time saved, computed from your own team's activity rather than a vendor estimate. ## Comparison **How is this different from Civil 3D's built-in Plan Production?** Plan Production generates a first plan or plan-profile set from alignments and can align a north arrow on each sheet. It is good at producing that first set. What it is not built for is the work that follows. Its sheets are a one-time publication. Each layout viewport captures a fixed window of the model when the sheet is created and does not re-tile afterward. A small design shift that stays inside that window still reads fine, so nothing needs doing. But once a change moves the design outside the window, or the alignment grows or its path changes enough that the original tiling no longer fits, there is no update path and the affected sheets have to be regenerated. It is also alignment-bound, so it cannot produce key plans, detail compilations, or other layouts that have no backing alignment. It cannot adopt a hand-drafted set, its scale bar does not adjust across mixed viewport scales, and it has no audit for drift. SheetAgent for Civil 3D covers that full arc: it updates the set while preserving work already done, produces alignment and non-alignment layouts alike, adopts existing drawings, auto-scales support content across mixed scales, and continuously audits for drift. ## Support **How do I get help?** Email support@setline.ai. Training videos are on the Setline YouTube channel, and you can book a live demo through the website. **Are more features coming, and how will we hear about them?** Yes. More features are currently in development. Announcements are made on the website and on the Setline YouTube channel, so subscribe there to stay current. If you have an idea you would like to share, or an improvement you would like to see, email ideas@setline.ai. **Where can I learn more or see it in action?** - Website: https://setline.ai - Book a demo: https://calendly.com/ramy-setline/sheetagent-demo - Training videos: https://www.youtube.com/@SetlineInc # Legal documents: summary Full text at setline.ai/privacy and setline.ai/terms. The summaries below capture the points most relevant to evaluating SheetAgent for Civil 3D. ## Privacy policy summary - Setline collects only what is needed to operate the product, and does not sell personal data. - From the marketing site: trial-request form fields (name, work email, company, website, requested team size, notes) and standard web server IP logs. - From the Manager Portal: the email of users invited to the portal, plus organization membership and role. - From the SheetAgent for Civil 3D plug-in: telemetry limited to command names run, layout counts, plug-in version, an anonymous session identifier, the email signed into the plug-in, and diagnostic exception messages. No drawing content, project data, or work-product data is transmitted at any time. - Setline does not modify the scope of telemetry collection to include drawing content without prior written customer consent. - SheetAgent for Civil 3D is a B2B tool intended for professional engineering and CAD teams. It is not directed at, and Setline does not knowingly collect personal data from, anyone under 16. ## Terms of service summary - The Service is SheetAgent for Civil 3D plus the Setline Manager Portal. - Subscriptions are annual and per seat, with the volume discount and seat-reassignment rules described in the Pricing section above. - Setline does not collect or have technical access to any drawing data, project content, or work-product data generated by the Customer through use of SheetAgent for Civil 3D. The plug-in operates locally on Customer workstations. - Customer retains ownership of all drawings, project data, and content created using the Service. - Governing law: State of Delaware, USA. - Standard limitation of liability and disclaimers apply. Full text at setline.ai/terms. # Blog Field notes from building SheetAgent for Civil 3D. Posts ship when there is something specific to say, not on a schedule. Browse at setline.ai/blog. Latest post: "When the design moves, the sheets pay for it": why sheet production hurts in Civil 3D, and what changes when the tool moves with the design. The first build of a sheet set is the easy 30%. The other 70% is everything that happens after the design moves. # Where to learn more - Website: https://setline.ai - Manager portal: https://manage.setline.ai - Frequently asked questions: https://setline.ai/faq - Privacy policy: https://setline.ai/privacy - Terms of service: https://setline.ai/terms - YouTube training: https://www.youtube.com/@SetlineInc - Book a demo: https://calendly.com/ramy-setline/sheetagent-demo - Support: support@setline.ai # Company Setline, Inc. is a Delaware corporation headquartered in San Francisco. SheetAgent for Civil 3D is its primary product. Setline was founded by a practicing civil engineer, and the tool is developed and tested daily on real civil infrastructure projects.