User and Partition Access Query

Hi there, Thanks for the link, I've read through it but it still doesn't seem to address what I'm after. Can a user authenticate to a TACACS server and be given administrative functions to two or more partitions only. Not all partitions? I can ensure that two or more attributes get returned from TACACS when the user authenticates, however it seems that BIG-IP can only give access to one partition (the first in the line order), and not the 2nd partition. I'm just trying to find if the user can get access to both partitions. Does that help clear up what I'm after? Thanks again for your reply!