The layout of the tabs and the size of the panel in the action bar is
locked by default. You can choose to make changes by choosing to unlock the action bar from
the context menu.
Right-click the action bar
and in the context menu click the following:
Unlock Action Bar to unlock the action bar. You can now resize the action bar docking area, undock any action bar panel and dock them to a different docking area, and reorder them.
Lock Action Bar to lock the action bar again. The action bar is locked by default.
Note:
You can click Display Command
Name to display the commands along with their names in the action bar. You can also click Reset Position to return the action bar tabs to the default location in the action bar.