In Windows Beta Group Where is the forum for reporting bugs?

I have been in the Windows Beta Group for a couple of weeks now and I have some bugs and improvements to report, but I can’t seem to find where I’m supposed to do this. I’ve been looking through the emails I was sent and can’t seem to find the right one. Where is the right place for me to do this?

you can email daniel@shapr3d.com
Ask to be allowed in the beta group forum.