Elektron Musical Instruments

Is it possible to have a pattern with say 4 tracks - 1 of 16 steps, 1
of 8, one of 4, and one of 3?  Or do all tracks have to be the same
number of steps?

I used to have a Quasimidi 309 (I refuse to call it a rave-o-lution)
and its sequencer worked that way which allowed for some nice evolving
permutations.

Thanks!

John