One way to do it is to set master pattern length to something that is divisible by both 3 and 4. The easiest would be 12 steps, but could be as long as 60 steps. If you’re just doing a 4 on the floor kick, then you put your 3/4 hits on multiples of three throughout. You could then use the FUNC + Left/Right in Record mode to shift those hits to a spot you prefer all together. Then go back and remove hits, adjust microtiming, and do all the elektrony things with p locks and trig conditions to get more variation. I think an important one is to shift timbre elements of the hits in subtle ways.
The other is that if you are just going to do 4/4 for the kick and you want that on every measure in the same spot, you could set the master time signature to 3/4 so you can get a metronome for that feel. Then, place the kick trigs on the multiples of 4 + 1.
Oh and the other way is don’t set anything until you have a poly metric feel you like in the first page or so of trigs and then adjust the track length in a subtractive way