Can other users see account sets that I have created?
No, account sets are only visible to the user that created them.
Coutts online
No, account sets are only visible to the user that created them.
The amended set is now available
You can add as many accounts to an Account Set as you wish but an account can only reside in one account set.
An Account Set is a number of accounts, grouped together for reporting purposes. You might, for example, want to view the overall balance of your Euro accounts or all accounts in a certain sector of your business. By creating Account Sets, you can easily view the overall position of any group of accounts that fit your criteria.