2 rows, each running their own amp. How can I invert a ping pong delay?

Row 1 - input 1 → Multi - Amp 1
Row 2 - input 1 → Multi - Amp 2

I want to be able to create scenes where I do crazy L/R trickery. I dont really want to use splits because I’m running independent pitch shifters on each. From hard panning to each amp, to blending the stereo field, to tightening/wideing the stereo field. - hence why I am using Multi and not sending mono outputs to each amp.

I’m hearing an effect in my mind

Row 1 has a ping pong at 1/4
Row 2 has a ping pong at 1/4

But they each ping-pong inversely. Can this be done?