What visibility controls
A group's visibility state is visual only. It doesn't affect:
- The marker count in the sidebar.
- The Excel export.
- The project marker summary.
What it does affect is how the group renders on the canvas. Three states:
| State | What you see on the canvas |
|---|---|
| Visible (default) | Markers rendered normally with the group's colour and opacity |
| Cover | Markers rendered with a solid fill, regardless of normal styling |
| Hide | Markers not rendered at all |
The state is stored per-file — hiding a group on one drawing leaves it visible on another.
Setting visibility
- 1
Open the dotted menu on the group's row.
- 2
Hover Visibility to open the sub-menu.
- 3
Tick Cover or Hide . Both are checkbox items — un-ticking returns the group to normal visibility.
When to Cover
Cover renders markers as solid filled shapes regardless of the group's normal appearance. Useful when:
- You're sanity-checking that every instance was found — the solid fill makes any uncovered symbol on the drawing leap out.
- You want a stark, high-contrast preview before exporting an image of the drawing.
Cover doesn't change what's been counted — it's a viewing mode.
When to Hide
Hide removes the group's markers from the canvas display.
- Cleaning up the view. If a drawing has many groups, hide the ones you're not currently working with.
- Before image export. Hide groups you don't want to appear on the exported PDF/PNG. (Hide affects image exports as well as the on-screen view.)
- Cross-checking against the drawing. Hide all detections briefly to see the raw drawing, then turn them back on.
The marker count badge stays — you can see how many markers are in a hidden group from the sidebar.
Visibility on the sidebar toolbar
There's also a top-level visibility filter at the sidebar toolbar — see marker groups's description of the Filter marker types button . That toggles entire types (every Linear group, every Annotation group, etc.). Use it when you want to hide whole categories at once rather than individual groups.
How visibility is saved
The Cover / Hide state for each group is stored in the per-file UI settings in your browser's localStorage. That means:
- The state is remembered when you reopen the drawing in the same browser.
- It's per-device — your office laptop and your home machine have separate visibility states.
- It doesn't sync between users.
If you set up a complex visibility scheme on a drawing for a presentation, take a screenshot before switching browsers — your colleague on a different machine won't see your view.