Volume of multiple automation items

[zabukowski]

Sorry, i couldn't find this information, maybe i am missing the obvious.

Is there a way to change value of automation points in multiple automation items at once. I don't want to use pooled copies, here is why:

I have pre-fx envelope with multiple automation items attenuating sibilance. They have different volume levels. At some point i want to attenuate even more, so i would like to do this for all items at once (overall track level should stay untouched). Is this possible atm?

Maybe de-eesing is not the best usage for automation items, but i can imagine this scenario for many other things as well.