UBB.threads PHP Forum Software Community Forums UBB.threads 7 Version 7 Support Allow Toggle of Markup/HTML in Posts?

Hello next question!

What exactly does Allow Toggle of Markup/HTML in Posts? mean?

We have a few users who want to make the fonts bigger, and I thought that did it but I can't see what changes it makes from the users perspective (ie where do they toggle or whatever? and how do they make the fonts bigger?)

Thanks