Has anyone done this yet? Is it even possible?

And I would like to have a feature request:
Could you make an option to let BMFont choose the needed Size of the texture to have all glyphs on one page while preserving power of 2 for that texture?
Thanks a lot .

And another question:
Is it okay for you if I deliver BMFont with my 2D Framework (Open Source)? With proper Credits of course.
Thanks.

Personally I would add underlining to the font at runtime, i.e. when drawing the actual text.

Having BMFont automatically choose the best matching texture size is possible, but not easy. I may not look into this in the future.

I'm ok with you distributing BMFont with your framework (with proper credit).