📷
Start by uploading a screenshot
Screenshot panel → left sidebar · or drag & drop here
Then add elements over the key areas
Click top ruler to drop guide · Click left ruler to drop vertical guide · Drag handle to move · Dbl-click to delete
↔ Swap mode — click first element, then click second element to swap
Drag · Resize corner · Dbl-click to rename · Right-click cycles color · Arrows nudge · Ctrl+Z undo · Ctrl+D duplicate
