cargo pods

[Krahken]

I've been lurking on the forums for some time by now;
I had some questions and found all the answers, except one;
it baffles me greatly and sorry if I sound silly :$, but here it goes:

I finally manged to buy a large transport with cargo pods hardpoints, thinking that cargo pods would add space to the usual cargo space of the ship; am I right in this assumption?
If I am, how do I fill up the extra space?
On the trading screen it shows only the usual cargo space, and i doesn't make any difference whether cargo pods are mounted or not, so I believe I must miss something somewhere.

Usually the solution is in front of my eyes but I just can't see it;
I've tried eveything but no use, so I resolved to ask.

Again, sorry if I waste your time for such a small thing, but it makes me mad, hehehe... :crazy: