Molly is great; I use it for the same purpose. I find the Signal devs' attitude so frustrating; they deliberately disable the ability to use Signal in secondar

Molly is great; I use it for the same purpose. I find the Signal devs' attitude so frustrating; they deliberately disable the ability to use Signal in secondary device mode for phone-sized-devices, because they know the Correct Way To Use Signal™ is to only use it on one phone-sized-device.