Many gestures have additional functionality when used with a key on the keyboard. In
the following tables, if a gesture has an entry in the Modifier keys column, it has additional
functionality accessible via a keyboard shortcut. For example, if you have the Control key
set as the gesture trigger, and you draw the play forward gesture, the project plays forward
from the current time. If you press Control-Shift and draw the play forward gesture, the
project plays from the start of the project.