Display number and names of possible groups instead of matched only

[kkmuffme]

Feature

With complex regexes, it's often helpful to be able to see all possible match group numbers and names, even if they are not matched.
e.g. a display like:

Possible named groups: 
foo
bar

Highest group index: 4

for https://regex101.com/r/kzrF6G/1 (this is an extremely simplified example)

[firasdib]

Would this not be possible by either hovering the regex, or looking in the explanation? Or do you mean explicitly to understand the numbering?

[kkmuffme]

Would this not be possible by either hovering the regex

If the regex is extremely complex with lots of groups, atomic groups and non-capturing groups, this is extremely hard and extremely risky to accidentally not get the highest/last group.

looking in the explanation

That's what I did then. I Ctrl+F searched for Capturing Group and Named Capture Group and added these 2 numbers (since Chrome shows you the number of matches) and then subtracted the number of search results found for Non-capturing group
Since this essentially takes multiple steps to do, I think this number should be displayed somewhere.

[firasdib]

Okay, so something like a quick summary of the regex somewhere. I guess that could be useful, question is where it should be placed?

[firasdib]

This is my current proposal:

[firasdib]

Current iteration looks more useful to me:

[kkmuffme]

Looks great! Possibly at "EXPLANATION" or "MATCH INFORMATION" too, so no extra click/hover is necessary?

(I put it in 2 places just as an example, obviously it would be only in 1)

[firasdib]

I'm worried that will turn a bit ambiguous. I will add the hover mechanic shown above in the new version at least.