Variable font settings in Figma Buzz

I would like to use Figma Buzz for social media templates but the font I am using is variable and I would like a specific optical size which I can set separately in a standard Figma file but I cannot set it in Figma Buzz, it changes automatically when increasing the font size and that doesn’t work for me in this situation. I know the idea was to have a more intuitive interface for simple templates but I would use it a lot in Figma Buzz if it was available. Would it be possible to implement it on there?