Why?

Of course it have sense to map axis constraints to same buttons. But in case of Y constraint on Y button - it was kind of uncomfortable to use. Especially if it need to pres Shift + Y or Ctrl + Y . Even for me 1.9 meter tall man with big hands this Y was to far from " comfort " zone to use it easily. In UV Editor it was uncomfortable key mapping to because in UVs vertical constraint is not Z but Y so I need to use it for a lot but it need all the time move all hand to press this key. And because it is far and it need to move all hand I have to look at keyboard to press exactly Y button, I use Blender for long time but still can't pres this Y or Shift + Y automatically without looking at keyboard...

Proposed.

1. Add settings to let user remap constraint buttons.

I want to remap this constraint for my self but I cant find setting for this. So first of all I ask not to change it for all users but let me set it to something other than Y . If some user want to remap all the constraint key - let him do this.

2. Maybe - also remap Y constraint to C by default. Perhaps map Y constraint closer to left hand " comfort " zone by default have much more sense than map it to Y because it is Y constraint.

As always - thanks for reading. Also you can check my other suggestions .