Changing armor at once with a new armor stand.

I wish I could wear the armor mounted on the armor stand at once. Thanks to the shelf, the inventory can be replaced at once, but the armor can't, so I thought it was inconvenient. I think it would be difficult to implement it because the armor stand is treated as an entity, but isn't there a way? For example, if you combine Redstone with an armor stand, you can create a new armor stand with this functionality.