[<< wikibooks] CAT-Tools/DéjàVu X/assign toolbar buttons to the Filter on Selection feature
Filter on Selection is one of the best features of DVX.
By default, the Filter on Selection feature is only available from the Context menu in the translation grid. One drawback of this feature, that one easily forgets that it is activated, because there is no visual indication on-screen. By customizing the interface and adding the functions to the toolbar, you will always have a visual indication when the FoS feature is activated.

Download the zip file containing the buttons created by Allessandra Muzzi:http://tech.groups.yahoo.com/group/dejavu-l/files/Miscellaneous/filter_buttons.zip

Unzip the file and follow the instructions in the readme.txt fileWhen you have activated the Filter on Source/Target button, simply clicking the button again will deactivate it.