Paring dumb trainer question on Zwift

When I pair/calibrate my power meter to Zwift – I’m using a dumb trainer – it asks to pair the “controllable” mode which obvously I don’t have

Is there any benefit or a best practise approach to allow this to pair or being that it is a dumb trainer,should I select ignore ?

Any feedback would be appreciatted

You can just ignore the controllable part. IT is only for smart trainers that change the resistance of the trainer.