Font size - how to customize it?



How do I make font size like e. g. 31,25 or 18,5? I can’t insert comma or dot in sixe box. How can I do this? Maybe some general settings?


I was able to just type in the decimal point and, as far as I know, there isn’t any special setting.


Sadly it doesn’t work in my case. I have Axure 9.