Group by comment

[Twisterat57]

Is your feature request related to a problem? Please describe.
I have a single ResX file with tons of translations, difficult sometimes to findout something

Describe the solution you'd like
Would be nice to Group by Comment, like you group by File when we press the Group by button

Describe alternatives you've considered
I am using filters

[tom-englert]

Group by a column that usually has unique content would have no advantage to just sorting by the column.