Pair Ikea Fyrtur Remote with Fyrtur Blinds?

Question, if I use the Ikea extenders that were included with those blinds, can you pair more then one button the the extender or do I have to use 1 button with 1 extender

extenders are not paired to anything , they just repeat all the signals in the network.
You don’t even need a driver for them to work , I am using generic Zigbee device driver from Mariano as it shows the extended info about the device and network quality.