Add an Action
To add an action to a group of independent actions, drag the new action and drop it anyplace inside of the group.
Sort an Independent Action Group's Actions
Although all group actions are independent — that is, they can be completed in any order — if it makes sense, they can be sorted by dragging the actions to the desired sort order.
Remove an Action
There are two methods to remove an action from a group of independent actions:
Hover over the action and click the text "Remove".
Drag the action and drop it anyplace outside of the group.