- Click to place new test point.
- Double-click to start calculation process immediately.
- Right-click to pop-up context menu (it is possible to choose calculation type “Insolation/SVF/Both” and/or set current test point number).
- Ctrl (Option) = switch “Express calculation mode” state (On/Off)
- Ins = switch “Sun scale” visibility (On/Off)
- Esc = finish tool session (plugin asks if it is necessary to process entered uncalculated test points if any)
- Delete = delete the last entered test point if any (the second key-press deletes the previously entered point and so on)
It is possible to set the current point number within Sketchup value control box, aka the "measurements" panel, while the tool is active.