Hi, I have an old gen 1 system with 2 play 5’s in the kitchen diner & 2 play 1’s in the tv room. I want to use my play 1’s with the tv, connecting with a Sonos Connect and Toslink (optical)

I currently have a Bose sound plate connected in the same way - but can I split the optical signal and then to the Connect to play through the Play 1’s at the same time….a kind of home cinema?

any help is appreciated 

J