Link Panners on ALL Existing Tracks

I’m new to mixing and I didn’t realise that “Follow Main Pan” or “Link Panners” was a “thing” until recently.
It seems sensible for me at least to enable this linking on every track as a default behaviour.
I have turned the preference on, so that new tracks are created with this feature, but is there a way that I can change the behaviour of ALL existing tracks?
I can only seem to do it on a single track basis at the moment which is a bit of a pain having to go through ALL existing tracks in this way.
Happy New Year

Quick link them…

I tried that @st10ss but it doesn’t seem to work for me for this particular function.