6 skill slots in the console version? (Dragon Age: Origins)

I saw on YouTube in the passage of the ps3 version that there are (as I understood) only six available slots for skills, while on a pc, here in this video
Spoiler is 40 slots. and the question arose, how then to play the console version.?.
Let's say one cell for healers, two cells for passive skills, and three are left for skills that deal damage.
in my opinion this is impossible. but sitting in front of the monitor, playing on the keyboard with a mouse for a long time (((
who played on the console in DAO, share your opinion on this