Disable Internal Clock For Track

[broecker]

I would like to be able to disable the internal clock for a track and then be able to clock it from an alternate external clock from one of the four inputs. The idea would to be able to run through a sequence at varying rhythms like I used to do with the SH-01, like sending the 808 rimshot out into it to push the sequence along. If this is already an option I do apologize and would appreciate a point in the right direction. Thank you!