If you create several markups, you can group
them so they behave as a single markup. Any modifications you make
to one markup, such as moving it or changing its properties, apply
to all markups in the group.
Note: You cannot group text edits.
Using the Select tool, select a markup.
Ctrl-click/Command-click to select additional markups.
Right-click/Control-click the selection, and choose Group
from the pop-up menu.