I'm trying to make a rectangle with scalloped corners. I draw the rectangle then I draw 4 circles and place each circle on each of the four corners of the rectangle, then Arrange|Combine|Slice.

3 questions:

How do I snap the centre of the circles to the rectangle's corners points (clicking on the Snap to Object icon doesn't seem to highlight the circles centre point)?

When I select all 5 objects and Arrange|Combine|Slice only one of the 4 circles slices one rectangle corner -- i.e. not all 4 as I expected -- and the remaining interior arc has to be deleted manually?

Is there perhaps a hidden keyboard combination that can be used with the rounded coners option of the rectangle toolthat will scallop the corners to a set radius (ideal solution)?

Thanks