Settlement to byzantium when riot

[Kolwen]

Hello all,
I am trying to make a mod where all the new rebel cities are given to byzantium.
I managed it to work when the player is byzantium, but not when this faction is controlled by the AI.
Looking through the forum I saw that there is no way to change the settlement from one faction to other,
however something similar works on the Baron Samedi's submod for TATW.
Could anyone explain me how does it works please?

This is my current script (really useless, I know)

Spoiler Alert, click show to read: 

monitor_event FactionTurnEnd FactionType byzantium
and not I_IsFactionAIControlled byzantium
and I_SettlementOwner Dragon_Pass = slave
    console_command capture_settlement Dragon_Pass
end_monitor

PS: I managed it to work with the re-emerging faction scritp:

Spoiler Alert, click show to read: 

monitor_event FactionTurnEnd FactionType byzantium
    faction_emerge byzantium slave 5 50.0 145.0 0.9 town false
end_monitor

However I want that faction emerging every turn on the rebel settlements. Is it possible?