Combine makes two shapes one: merged, one cut out of the other, only their overlap, or everything but it.
Once the image is unlocked
How do I combine two shapes?
1Open Combine on the first shapePress the shape, then Combine on its card. Each choice says, as you point at it, how the drawing would look.
The Combine menu of a pressed shape, the likeliest second shape offered at its foot.
2Choose what to doMerge into… (⌥⇧U) makes them one shape; Cut out… (⌥⇧S) cuts the second out of the first; Keep overlap… (⌥⇧I) keeps only where they overlap; Exclude… (⌥⇧E) keeps everything but the overlap.
Merge into, Cut out, Keep overlap and Exclude, each with its keys.
3Press the second shapeThe shapes it can combine with light up on the drawing; press one. Or take the one the menu offers straight away. Esc lets the choice go.
The card stays beside the first shape while you choose the second.
Where it is · step 1 of 3
The Combine menu of a pressed shape, the likeliest second shape offered at its foot.
Merge into, Cut out, Keep overlap and Exclude, each with its keys.
The card stays beside the first shape while you choose the second.
Is the second shape kept?
A merge keeps one shape. Cut out…, Keep overlap… and Exclude… take the second shape away unless you choose to keep it while you pick it. Undo takes the whole step back.
Once the image is unlocked.Combining redraws the outline, so it is offered once the image is unlocked. Before that, the menu wears a lock and offers the unlock where you are.