Presence only works with separate Homey’s for the locations.
So that make’s you can’t use a Bridge as Satelite of your first Homey Pro.
To choose between a Homey Service and a Bridge or a Pro for your Summerhouse is just what you need there. The “Limmited” set of Official Apps for Homey (+ Bridge) or everything you now have on Community apps? Just check the table online on the bottom of the page:
Homey Cloud - Makes smart home easy & fun for everyone
and see [Info] Homey - Homey Bridge - Homey Pro Maximums / Limitations
