The title says it all:

It would be great to be able to insert the Account name + account number.

With this I'ld really like a account-number generator.

 

The key point of this generator would be:

I can generate all sorts of accounts :  random numbers, random letters, combined, with a default prefix

eg.:  CH-AN 4563

 

the generator must know what keys have been given so that it never hands-out the same key twice.