Of course you can just move it 8 feet.
Funny thing about bees learning a new entrance or location for their hive. When I close the top entrance in spring, the bees are forced to learn to use the bottom entrance. The do...quickly. Moving 8 feet or even more really isn't different. I remember a hive I had to move across the apiary road. 10-12 feet. It wasn't long before the field force sorted it out. But did they return to the hive directly to the new location? Nope, they didn't. They flew back to the old location, then crossed the apiary road and into the new entrance. This went on with the old field bees until they were all gone. The new bees learned the new entrance. The field force in the hives with the closed upper entrance...well, they do the same thing. Fly in from the field to the old location, and crawl down the hive to the new location. Makes me think....
What is bee memory? The bees don't think to fly home to the new entrance or location. They fly home to the old entrance or location and then to the new entrance of location. They never change what they have learned, but only add to it, as you might add to a web site address.
So, I'm thinking bee memory is more like a web address. It would look something like this...fly_in_from_field/to_old_entrance_or_location/crawl_or_fly_to_new_entrance_or_new_location