How can I add modules I didn't select during install?

Is there a way to add some of the modules I didn’t select during installation, such as the AOS Product module, after the fact? Hopefully I don’t have to reinstall the whole thing?

In Admin / Display modules and subpanels
and Admin / Configure Module Menu Filters

This is where menu options get turned on and off.

I am not sure about your actual question, I am assuming everything is always installed and modules are simply hidden, but I never tried it, so I can’t tell for sure.