hyperviperx99, I also missed some "hello world" info on these basics when I installed
First, MicroCart needs to be enabled in ACP / Plugins / Products, or all ACP parts for microCart will be hidden. You may need to refresh the ACP to see the microCart drop-down in the ACP left column.
THEN you should see user group rights at the bottom of:
- ACP - Usergoups - Usergroup Manager - Edit Usergroup / hit "Go" and look right at the bottom of the long page with options.