BT Broadband Extender - question....

[Filton-flyer]

Evening all

I bought a set of 3 BT Broadband extenders recently (used off eBay) and they work fine throughout the house serving two separate rooms with a decent speed broadband signal, I was wondering if it's possible to add a third unit to the set?
I'm guessing they are "paired" in some way so they can talk to the network but was hoping to add one more and get it to work.
This is the unit in question.....


Any advice would be greatly appreciated.
I did look on YouTube but they are mainly "unboxing" clips which aren't too much use, nothing about adding another.
TIA

FF

[Mr Pointy]

According to these instructions then yes you can:

https://www.bt.com/content/dam/bt/help/legacy/2633...

[Filton-flyer]

Mr Pointy said:

According to these instructions then yes you can:

https://www.bt.com/content/dam/bt/help/legacy/2633...

Thank you very much, much appreciated.