Action On KeyPress Instead of release

Idk if this has been stated before but in the past i used trinity bars 2.0 to enable this feature but that no longer exist and the feature is lost on the server. I was hoping that maybe the devs who work on the server could come up with something to make this feature available to us. This feature is a huge quality of life. Especially in tbc when there is no spell q so you want to get the cast off as soon as possible. Idk how they did it with trinity bars or how they did it in cata which is when i believe that they released the feature but i would love to see it implimented on the server.

http://www.wowinterface.com/download...dyActions.html