Looking for some advice please.

My 2017 car has the below style of rotary heater & fan control knobs:

[Linked Image]

I recently purchased some stainless warning lamp bezels from Cain and they will look very smart and finish the dashboard off nicely. Unfortunately I then got to thinking that they would look a whole lot nicer fixed to his rather swish looking black anodised engine turned aluminium veneer...
Fitting the veneer would require the dash to be removed and I've read enough on here to be reasonably confident in tackling that job. However, to fix the new veneer would require the heater and fan controls to be removed. I read somewhere that there are some small grub screws holding them on but if mine are secured by this method then I can only guess that they are on the inboard side of the dash because they are not visible from the cockpit side?
Or will the knobs just come off with a confident tug?

Any advice greatly received.

2017 4/4 80th Anniversary