Can we do a find and replace to apply a style?

The last routine DF I have in my doc is superscripts. I can make a character style for that, but can I do a global replacement? For example: m3, but the ‘3’ is actually a superscript, replaced with the new style? I tried a ‘Find all’ and then just apply the style to all the finds, it works except that the ‘m’ is changed too. Can Find find ‘m3’ but only highlight the 3? Or is there another way? Online I found a few people attempting this sort of thing with a macro, but that’s above my pay grade at this point.

Ah … tick ‘Whole word only’ and: Attributes > Position … but I guess that will catch subscripts too, tho that might not be to much of a problem. Unless there’s a better way of course.