The behaviour
When you return to a project, ZeroCount automatically pre-selects the last drawing you worked on in that project. You'll notice it in two places:
- The file's checkbox in the services and files panel is already ticked.
- If you click Submit without changing the selection, that file opens first.
This works on a per-project basis. ZeroCount remembers a different "last file" for every project you've ever opened.
Why it's useful
The typical takeoff is iterative — you open a file, draw an AOI, run detection, find a mistake on another drawing, come back, fix something else. Without this behaviour you'd be hunting for the right file every time you reload. With it, you pick up where you left off.
How it's stored
The last-active file is saved in your browser's localStorage, keyed by user and project. That means:
- It's per browser — switching from Chrome to Edge will reset the memory for that browser.
- It's per device — your work laptop and your office desktop have separate memories.
- It survives sign-out and back in on the same browser.
- It doesn't sync between teammates — each person has their own memory.
There's no visible UI indicator for it — it works silently in the background.
When the pre-selection isn't right
You'll sometimes want to open a different file:
- 1
Untick the pre-selected file in the services panel.
- 2
Tick the file you actually want.
- 3
Click Submit .
The next time you return, the new file becomes the remembered one — ZeroCount updates the memory whenever you have a file actively open in the editor.
Multi-file submission
You can tick more than one file before clicking Submit — the remembered file is loaded first, and the others queue up for review. The other ticked files all stay ticked between visits, but only the last actively edited file is the "last-active" one.
Clearing the memory
There's no in-app reset for this. If you ever need to clear it (you've finished a job and want a clean start), clear the relevant localStorage keys via your browser's developer tools — the keys begin with lastActiveFile_.