FabFilter User Forum
Pro Q4 - filter "other instance" selection to only the current project
I'm afraid it's up to the host to limit the interplug-in communication between a single session or all sessions. We can not set a limit for this ourselves.
Are you on Mac or PC? I just tried here on my Mac but I notice the scroll wheel works as suspected.
Ralph (FabFilter)
— Jun 22, 2026
In Reaper, when having multiple projects open - FF plugins that have capacity to sidechain/and instance view will list everything from all projects.
Can it be set so that it doesn't do this?
Also, the (mousewheel scroll) direction to change slope db amount per octave is inverted in pro q4 and it's the only option that doesn't logically scroll down to change its value.