Revisions and redlines
Compare drawing files, extract markups with Analyze Redlines, and work Revision Items to done in BuildX Studio, per submittal or across all jobs.
Redline review happens on a submittal’s page in BuildX Studio (open a project, then a submittal). The all-jobs list lives at studio.mybuildx.com/revisions. Everyone on the job can use it.
What you can do
- Preview any drawing file and compare two files with Compare with, in Side by side or A/B toggle layout.
- Run Analyze Redlines to have AI pull the markups into Revision Items.
- Assign each item, open its sheet, and check it off.
- Track progress in Status Overview and on the Revisions page, and Export CSV.
Compare two drawing files
- Open the submittal. Under Drawing Files, click the eye icon (Preview) on a file. The Drawing Preview opens.
- Above the viewer, the Revision: buttons switch which file you’re viewing.
- In Compare with, pick another file. Single view turns comparison off.
- Choose Side by side (A and B next to each other) or A/B toggle (flip between them with the A and B buttons).
- Click Exit compare when you’re done.
Comparison is visual: you look at both files. Studio doesn’t compute a pixel difference.
Pull markups with Analyze Redlines
If AI analysis is unavailable or busy, the card shows the reason and offers Run Again. Nothing is saved from a failed run.
- Upload the marked-up PDF to the submittal (Upload Files).
- In the Redline review card, click Analyze Redlines. The steps show Scanning Documents, Detecting Redlines, Extracting Items, and Prioritizing Tasks.
- When it finishes, each markup becomes a revision item with a description, sheet reference, location, priority, and an AI tag with a confidence percent.
- Check every item against the sheet before you hand it off. Click Sheet: … on an item to open that sheet in the preview with the item highlighted.
Run Again resets the card; click Analyze Redlines to run it again (for example after uploading a new markup set). Each run adds its items to the list.
Work the Revision Items
- Items are grouped by category with a count of findings.
- Priority shows as a badge: Critical (high), Review (medium), or Skim (low).
- Click the assignee button (Assign) to pick someone on the job team, or Unassign.
- Check the box to mark an item done. Uncheck it to reopen it.
- Status Overview on the right shows Completed, Pending, and Progress %.
Revisions across all jobs
The Revisions page (“Punch lists, all jobs”) lists every revision item you can see:
- Counts: Total Items, To Do, In Progress, Completed.
- Filters: search, Assigned to me / All, status (To Do, In Progress, Done), and priority (High, Medium, Low).
- Each item links to its project, its submittal, and its sheet. Check the box to mark it done.
- Export CSV downloads the filtered list (description, sheet, location, priority, status, project, submittal).
Tasks in the sidebar opens the same page filtered to To Do. The project page’s Revision Log tab shows the items for one job.
Good to know
- Each run reads up to four pages in total, starting with the newest revision’s pages in order. Put the marked-up sheets you care about first.
- Revision items come only from Analyze Redlines. You can’t type one in by hand yet, and you can’t edit an item’s text or priority.
- The checkbox switches between To Do and Done. There is no control to set In Progress.
- Use Upload Files → New revision to upload the next numbered drawing set. To add sheets to the current set, choose the current-revision option instead. Uploading a new revision updates the submittal’s revision number; the original files remain available for comparison.
- The Comments card on a submittal is a placeholder; Studio doesn’t support comments yet.
- The robot button in the preview opens the Drawing Assistant. See Ask Documents.

