Basic LFO pitch question

[durrdurrdurr]

Hi, im trying to do a rather simple trick with my newly bought TI, but i cant find the right setting for it.

Basically, i have a sound made up by three oscillators, and then i want the pitch for all three to follow a simple lfo sine wave. Up and down, and up again, and then down. and then.... The effect i want is the same as if i would have synced them all and turned a detune knob +- 50% continuously

However, i cant assign the lfos to control the ocs as i want.. Any tip here? do i use the matrix assign section for this?