Crop
Trims a design down to a piece of stock, so the artwork stops at the edge of the material instead of running off it.
1
Select the artwork first and the shape to crop to last. That last shape is the window.
2
Only what falls inside the window is kept. Everything past its edge goes.
3
Each piece stays its own shape, and the window is not cut.
What it is
Keeps only the artwork inside the last shape you select and throws the rest away. Select the artwork first and the window last.