Mapping suggestions for return key in normal mode?

After having used Kakoune for several years, I just now realized that the enter/return key does not have any mapping in normal mode.

First of all, am I missing something with this observation?

If not, then I’m curious if anyone has any suggestions for how to make use of this prime key real estate?

map global normal <ret> <a-i>w to select the word under the cursor for example…

I mapped <ret> to : and w to <a-i>w, since b and e are symmetric.

It is used in grep.kak and make.kak though. And back in the day, i also wanted to remap it and saw that it broke grep. I don’t know if it is still the case.

I either use : or <space><space> in this case.

Good point, I hadn’t even realized that enter wasn’t defined in normal mode yet. I would like to try more audio feedback to help keep the modes straight. How about audio feedback from unused keys specific to the current mode?