Zigbee Btcino adding dimmer and zwitch procedure

Hi, i try to setup the zigbee USB gateway from Legrand/Btcino with the openwebnet bidding , i have allready have gateway f454 BUS running perfectly.
my ZigBee USB Gateway BTI-3578 is online in paperUI , but i try to add dimmer and switch but nothing append…, i try to add number found on the dimmer for exemple “00047400006E4848” but nothing append, my dimmer is in the zigbee network allready (via reset and add procedure) but nothing append ? how discovering the switch and dimmer ? is auto via add in paperUI ?
thanks for yours help