As far as building your drum tracks from the midi grooves goes Beepster you can drag loops/grooves into Eco's drum track lane which runs across the middle and arrange them how you like but you can't do any proper drum editing such as moving, adding or changing the velocities. But just like all the other drum VSTi's you can very easily drag the loops into sonar's midi track and work on them in the piano roll.
Steve.
Have you signed up to the fx forum yet? The fxpansion crew are always around and are very helpful.
Having said that there is obviously much less traffic there than there is on this forum so you might get quicker responses on here.
Especially now as there are more and more fxpansion users on here.
Steve