parameter automation on multiple tracks at once

I am having difficulties trying to assign an automation on multiple tracks. (Trying to assign cutoff automation so all 3 tracks are affected equally at the same time)

When I linked three channels and tried to assign the desired parameter, only single track is affected.
When I tried with the group channel, I cannot find any options to assign to my CCs.

Pls help.


I’m afraid this is not possible. But you can Copy + Paste the curve.