I want to delete all Z location animation on multiple objects in one operation.
Normally i would just right-click the Z location channel and select “Delete Animation” but that’s in Maya.
In Blender it only deletes the animation for the active object.
It is very unintuitive and very hard to find documentation on this.
I’ve been searching for an hour that’s why i posted here.
You could just filter and delete them in the graph editor -
Well that’s a solution but it’s a lot more complicated than i expected :frowning 
I don’t get why the ALT+Right click on the channel>Clear single keyframes doesn’t work/exist.
The ALT+ trick works for most batch operations like that but not that one, that’s too bad.
Yep, alt click works for some things, for other things it doesn’t. Really annoying. I ran into that heaps of times, more often than not writing a couple lines in python is the simplest solution.
I’m no animator though, there might be faster ways to do it.