pasteup / 05

Selection

Key Effect
M, ⇧M select tool, next mode (rect, lasso)
drag select; a click without a drag deselects
⇧ drag, ⌥ drag add to, take from the selection
⌘A, ⌘D, ⌘⇧I select all, deselect, invert
Esc, ✕ in the canvas bar deselect, in every tool
⌘C, ⌘⇧C copy from the active layer, copy everything visible
⌘X cut from the active layer
⌘V paste floating into the active layer: move it, Enter or the next action places it, Esc discards it
⌘⇧V paste as a new layer
Backspace clear the selected pixels (without a selection: delete the layer)
T lift the selected pixels into a floating layer to transform them: Enter places, Esc puts them back

Selections are texel exact. Brush and eraser paint only inside the selection. Pixels outside a piece's rectangle can't be painted or placed; pieces never grow.

A paste lands where it was copied; the next one of the same copy where the last was placed, so ⌘V, ↓, ⌘V, ↓ stacks rows.