Merge inbound payment contacts?

I’ve merged outbound payment contacts, but it’s there a way to rename the groups? Some people in families have the same initials and it’s quite confusing

Secondly, is there a way to merge inbound payment contacts? My fiance has a DD to our joint account, and also makes straight payments to it, but they appear as different names (one is full name, other is initials). It’s be great to group them so we can quickly see inbound transactions from them