Title says it all really, adding the ability for players in a Pro DM's game to be able to access the Custom FX Ribbon would be great. This'd allow players to add their own Custom FX themselves, as opposed to having the DM do it, would allow players a much easier way to use the Custom FX, and would allow them to actually use FX that follow the mouse cursor when clicked properly. Additionally the ability to add new colors and have your Custom FX select a color similar to the default implemented ones would be awesome, instead of having to create an effect in every different color/element you want to use it, this would make the Custom FX a lot more user-friendly.