drag pans · wheel zooms · click selects one · shift-drag boxes a group (shift-click toggles one) · a select all · esc clear
ctrl-drag moves the selection · ctrl-wheel rotates it (0.025°, +shift 0.125°) · ←↑↓→ nudge 0.05m (shift 0.5m, ctrl+shift 2.5m) · [ ] rotate 0.1° (shift 1°, ctrl+shift 5°) · p fix/float · i isolate · +/- (or scroll the selection box) cycle submaps · ctrl+z undo · f fit selection (or all) to view