Groups tool box

Break up a complex element(s) or an element(s) of a special type into simpler components.

Create a complex chain (open complex element).

Create a complex shape (closed complex element) from individual open elements.

Create a complex shape from the union, intersection, or difference between closed elements or by “flood fill.”

Create a graphic group.
see footnote 76

or

Add elements to an existing graphic group.

or

Combine two or more graphic groups into one graphic group.

Remove (drop) an element(s) from a graphic group.

or

Break up a graphic group into individual elements.

Select a solid element and the hole or holes to be associated with the solid.