Filter next to LFE-Fader

It would be great to have a switchable (80/120) HiCut-Filter next to the LFE-Fader in Surround Panner, which cuts the outgoing signal!

At the moment I have to have an extra lowpass-plugin on every 5.1-sub-group which cuts the LFE-Channel there, to make sure that the LFE-track in Master and Stems has no high frequencies.

+1 for Dominik again!
And the Lowpass Filter should be zero-phase for optimum downmix compatibility