Is it possible to run Catalina on an external SSD and then create a Windows bootcamp partition from within the OS? I recently ran into a problem with the Mac version of the Steam client. After Steam updated the client, some games are crashing. So I was forced tp create a bootcamp partition for Windows 10 and play games that way. That has eaten into my measly internal drive, so if possible I would like to run the Windows partition on an external SSD with Catalina on it as a host.