Subtracting Faceted Bodies

Select the Subtract tool .
Select the first faceted body.
The first faceted body is highlighted in blue.
Select a second faceted body or a solid body to use as a cutter, or box-select multiple cutters.
The second body is subtracted from the first.

Patterned components are up-selected in the Boolean tools. In the example below, the cylinders were made as a pattern. Highlighting one pattern member highlights the entire pattern.