I am at present copying LPs to my pc, and to the Audacity software I have installed. For some reason or other I have copied one side of a record onto one track, and the other to another track. On reading through the operation procedures, I read that I could get both tracks onto one, but when I came to have a go at this, I find that the cut, copy & paste buttons are all disabled. Is there any reason for this? Any help will be useful. Thanks