You cannot increase the current limit of 100 steps. However, you can use Version History in order to undo changes made a while ago.

Yeah, look, you guys track all clicks rather than just meaningful actions. So you eat up our undos with behaviour that is useless to us. Can you stop including clicks in your undos, and then maybe 100 will be enough?

100 is never enough, we need customization feature up to 300 at least… with clicks as well