Renaming my SONOS 1 speakers using ONLY the app!

I would like to rename my speakers just using the app itself.

I have 2 SONOS Play 1 speakers set up and they work just fine, but their “names” do not reflect their “location” I’m using the SONOS 2 Controller and the software was just updated about an hour ago.

So I’d like to do this WITHOUT using THE FOLLOWING: 

“alexa” (she doesn’t live here...)

“iCloud” ( it was never set up...I don’t use it)

“Apple Home” app (Do not want or need it)

Like the subject line says: “just using the app itself.”

Help!

tHANKS