Insert DeeGain between the other effect plugins, then it will work like the gain/trim control of a mixer console.
DeeGain is a VST/AU plugin with following features:
It is a simple plugin which controls the volume from -20db to +20db.
Insert DeeGain between the other effect plugins, then it will work like the gain/trim control of a mixer console.
https://dotec-audio.com/deegain.html