How to store last clicked BP to GI?

Hi, I’ve got another problem though.

I click Actor [0], change the mesh. Reload the level and change the mesh again, it works fine.
But after that, I click Actor [1], change the mesh. Reload level. The actor [0] also got changed the mesh to its original.

After I reload the level, I change to Actor [1] , I also want to keep the mesh on Actor [0] not to reset it.

How to overcome this? What’s the best way to approach this?