Given that you are attempting to perform a "cut & paste", I believe the manual has caused confusion for you.
Maybe this will help: the Banks do not store frequencies & settings.? Only the actual memory locations can store that information.? That information cannot be "cut & pasted" to a Bank. A Bank is a list/collection of memories.? When a Bank is active, only the memories assigned to that Bank can be accessed.
A memory can be assigned, registered, (pick your word), etc. to one or more Banks.?
Here is an example from the display of FT60 Commander.? Some memories are assigned to Bank 1 & 2 are assigned to Bank 1 and Bank 10