It is very common with CI modules, one channel to watch live, recording should be done encrypted to CI restrictions can still be enforced when playing the recording back (requires hardware that that do this!).
Some CI modules support two channels (but still restricted to the same transponder), there is an option in the CI menu to enable that, so you can test it (by default it is set to auto, which requires the CI module to indicate it is capable).
Only professional modules don't have channel restrictions (for use in headends), but are still restricted to one transponder per module.
multiple service support ?
so yes i get the option unscramble and record ecm and getting somewhere now, i can manually record another channel whilst watching another using this option on , but to set a timer recording seems to freeze the channel im on when it starts