UR44 problems

Thanks for that BriHar - I have registered and used the activation code and updated all drivers. I’m just unsure about using the same activation code if I reinstall but maybe thats not necessary (though I do want to put it on my laptop as well). I noticed that info at the end of the PDF but can’t work out how to turn off channel strip? Nothing happens when I hit the ‘channel strip’ button and i think I’ve explored every avenue, but maybe not - how would I do that?

Thanks again

Rob