Sage Accounting UKI

I recently imported Sage 50 into Business Cloud and would really like to tidy up my Nominal Codes in the Chart of Accounts. It seems I can't delete nominal codes (even if empty)? Is there any way round this?

Apologies if this should be obvious but I'm a Cloud newbie and Sage 50 veteran. My starting point on Sage 50 was always the list of Nominal Codes, their balances, and then a click to view activity and facility to drill down to see postings. I can't see…