Not sure if this is correct place to ask, but does anyone know if it would be possible/safe to take a signal in on "input1", then out on Output1 into a "scandoubler/frammeister" then feed the scandoubled signal into "input2" and out again on output2?

Obviously this is to be able to "scandouble" several devices where I can just select them on the matrix switcher.

My switcher is a kramer vp-1608