Selection
Basic selection
| Action | Input |
|---|---|
| Select | Click on geometry |
| Multi-select | Ctrl+Click |
| Rectangle select | Click and drag on empty canvas |
| Select all | Ctrl+A |
| Select all on layer | Shift+A |
When clicking an object where multiple objects exist, a menu will appear to confirm the object you wish to select.
Selection uses an R-tree spatial index for efficient hit testing, so selecting and range-querying stays fast even on large datasets.
Hover highlighting
Geometry under the cursor is highlighted before you click, giving visual feedback about what a click will select.
Selection sets
Ctrl+G Save the current selection as a named set and restore it later with Ctrl+Shift+G — useful for
repeatedly working with the same group of geometry (e.g. all boundary
points, or all geometry on a particular layer).
Selection history
Navigate back Ctrl+[ and forward Ctrl+] through previous selections, similar to browser
history.
Select Similar
Shift+S Filter and select geometry by type, layer, code, name, position, or length —
useful for bulk operations like “select all points with code BNDRY” or “all
lines on this layer.”
Context menus
Right-click on geometry or empty canvas for context-sensitive actions.