Text Editor / Set text size?

Why can't I set the text size for comments in the text editor?

That makes things a bit cumbersome.

I often receive texts in Word or via email.

I have to format the text to the correct size in Word and then copy it into the editor. However, if there’s already existing text, it sometimes looks like a mess, and you have to go through the hassle of editing the entire text externally and pasting it back in.

Surely there must be an easier way, right? Like making that option available in the editor.