I wonder if there is any way to group functions, and if there isn't, could this feature be added.
For example, by using a special key after a comment and then the group title.

In bash, If the special key is %, it would look like this:
#% Group Title

Then all functions after that get grouped inside "Group Title"
This could be enabled when sorting by appearance. Also it would be cool if the sorting is remembered.

I have a lot of functions and with this it would be much easier to find them.