Can Jasco 3-way auxiliaries be used with a Homeseer switch?

I’ve got a bunch of the Jasco / GE switches and I’m happy with them, but am interested in the color LED readout of the Homeseer models for several key places. Is it possible to replace a Jasco switch with the Homeseer one while leaving the Jasco auxiliaries (remotes) in place? Or do they work a different way?

Alternatively, can the Homeseer switch be installed (in a double gang next to the original switch) without a load?