ps3 hen help

I understand about the 2tb limit on PS3 models with portable hard drives. So I am wondering, with Hen and webman, can you have two 2tb hard drives attached to usb ports, and still read both of their contents (iso backups) at the same time?

I need help guys this issue is very annoying trying to install hen so I can play gta 5 online on the ps3 all started when I got all the files on my drive and my ps3 wouldn’t recognize that the update file was on there went into recovery mode and it saw them so I did it when I rebooted it didn’t...