Rectangle and lasso selection turn a drawn shape into a working set across every selectable layer — and they're built for scale, so selecting tens of thousands of features is a normal move, not a mistake.
Run a selection
- Choose "Rectangle Select" or "Lasso Select" from the toolbar's "Select" tool.
- Draw across the area you care about. Every visible layer with "Include in selection" enabled participates; excluded layers are ignored. Visible means the layer's eye is on — a layer that is outside its scale range at the current zoom still participates.
- Watch the "Selecting features..." progress pill until highlights finish rendering.
- Review the result in the Data pane's "Selected" tab.
When selection can't run
Two messages worth recognizing:
- "No selectable layers" — everything is excluded. Flip at least one layer's toggle to "Include in selection".
- "Selection unavailable" — you need a vector layer that's actually visible. Hidden layers don't count, and WMS and imagery layers can't be selected this way.
Put the selection to work
A spatial selection is an input, not just a highlight:
- Data pane — the "All" / "Selected" / "In View" tabs present the selection as rows you can page through and work from.
- Analytics — any analytics widget with its "Selected" toggle on recomputes against the selection geometry, so a lasso around one neighborhood instantly rescopes counts and charts. Ava Reyes lassoes a corridor of "Distribution Mains" in the Harbourview Network Buildout and reads the material breakdown for just that corridor without touching a filter.
While highlights remain, "Clear Selection" stays available on the toolbar even after you switch tools — clear when you're done so stale highlights don't mislead the next read of the map.
Next steps