Before you can perform takeoff using your digitizer, you need to specify what region of the board is being used (unique for each page). Stylus input outside this region is ignored by On-Screen Takeoff.
These are just reference marks to help you determine where your takeoff area is if you have to come back to this page to draw additional takeoffs.
The Set Takeoff Area dialog appears. This dialog explains how to set the takeoff area.
Put a check next to Apply to all Pages if you want to set the takeoff area for all pages in your project - if you want to set the takeoff area for the current page only, leave the box empty. Because takeoff is performed in a different region on each page, this is not recommended.
Any stylus movement outside this region is ignored by On-Screen Takeoff (except for the Mouse Template region).
Repeat the steps above for each page in your project WHEN it comes time to takeoff a page.
If you are unable to Set the Takeoff Area, review Troubleshooting a GTCO Digitizer for assistance.