Grapevine is an app which adds mixer group functionality to FLStudio.
FLStudio is a great tool, but one feature it lacks is the ability to group mixer tracks, also known as “ganging faders”. Mixer groups allow you to change groups of sliders all at once while still maintaining the relative volume level among the tracks.
This is very useful if you do not like submix bussing, or if you have audio routed to multiple destinations and submix bussing is not adequate.
If you like it, you may buy the full version for $24.99
The full version adds the ability to save sessions, load mixer track names from FLPs files, and also type in mixer values in dB units.
Please post any problems you have in the Grapevine support forums