Content Browser Material Change

Hello!
How can I exchange selected materials in the content browser?
Is it possible to exchange a material with another material, make material 1 and then material two cloudier and material 1 then becomes material 2 and all textures in the viewer are changed to material 2.

The Vectorworks Live link also gives me the material with every handover.
So if I have changed a material after the export and then carry out the live link export, it overwrites my settings from the Unreal Material setting!

Is there someone who works with the Vectorworks Live link?
Do you have a tip for me?
Thank you very much!