The merge feature can be used to combine overlapping polygons that represent the same object, or to link isolated but related polygons.
To merge two polygons, use the Select tool to highlight the first section, click Merge or hold down Shift + M, and click the second polygon to combine them.
The brush tool
Merge and Subtract are currently supported on images. Check out this article for instructions on how to add and subtract polygons in images and video using the brush tool.
Updated 7 months ago