How to assign multiple meshes for an actor

Hello everyone, this is my first post and I´m pretty new in C++ programming. I´m trying to make a realtime ArchViz project and I need to change the mesh of an actor when a key is pressed; suppose I have a modern design chair that can be changed to a retro chair and then to a classic chair and so on (I suppose is kind of an array…). How can I assign the meshes and then call them in the code so I can add interactivity? I´m trying with FObjectFinder but it seems to work only in the constructor… Thanks!