How about instead of
“Are you sure you want to remove the selected Glyphs?”
we have
“Are you sure you want to remove the 3 selected Glyphs?”
(or even “Are you sure you want to remove the 3 selected Glyphs (aacute, agrave, atilde)?”)
How about instead of
“Are you sure you want to remove the selected Glyphs?”
we have
“Are you sure you want to remove the 3 selected Glyphs?”
(or even “Are you sure you want to remove the 3 selected Glyphs (aacute, agrave, atilde)?”)
Sure! (Though if you want to be perfectionist, have the dialogue title be singular or plural as appropriate! 
