this is indeed, crappy. I do not know anyone who works in 1 bar loops.
A bit of a work around to this that I do is:
Visualize your desired 4 bar loop,
create it 1 bar at a time (not the same really but it's all we got ATM)
Chop your samples and place them one bar at a time after you have practiced over your loop.
You can also go into the grid editor in the Sequencer window and add them like a step sequencer over "bunches" of your 1 bar loops, which is not too different than Reason, etc.
WOW.......IF THAT ISNT THE FIRST THING INTUA NEEDS TO FIX, I DONT KNOW WHAT IS.......
IM PROBABLY NOT GOING TO TOUCH THIS PROGRAM UNTIL THATS THE CASE....