Hi Andrew,
Thanks for your help. The copy/paste function DOES work in the stand-alone version, but not in the plugin.
I will try muting the tracks using your advice when I use my DAW later. Thanks.

One further observation: when I quit Studio One and the BIAB plug in is 'active', there is an immediate crash with the prompt "Studio One quit unexpectedly". However, let me recheck this with the new build update.

Thanks again.