Multi-cursor & Column mode

Multiple cursors

• Alt+Click adds a cursor; Ctrl+Alt+Up / Ctrl+Alt+Down stack cursors above / below. Esc collapses back to one.
• Typing, Backspace/Delete and movement apply to every cursor; overlapping cursors merge. A multi-cursor edit is a single undo step.

Column / block mode

• Shift+Alt+drag selects a rectangle. Typing or deleting acts per line.
• Toggle Column Mode (Alt+Shift+C) makes Shift+movement build a block; in this mode a plain drag also builds a rectangle.

Column tools

• Column Fill - insert the same text on every line of the block.
• Column Number - insert an incrementing number (start[,step]), zero-padded.
• Align at Carets / Align on Delimiter - line up columns.

TODO

Add a screenshot here.