As the title suggests, it would be sometimes handy to show the number of selected characters, kind of like how Notepad++ does (Sel: x) near the bottom.
I don't know that this has come up for me before, but using B4R with a 20 character per line LCD display in my project, I am finding myself needing to count the number of characters I am wanting to display to ensure that it will fit.
While probably not needed in 99% of circumstances, I think it would be a nice thing to have for those 1% of circumstances where it would be useful.