Hi there!
I want to introduce you the Multi Assets Changer - MARKETPLACE link
Super simple editor improvement that adds ability to change parameters and values for multiple selected assets (Static Meshes and Textures) in the Content Browser
No need to change parameters for each asset manually. With Multi Assets Changer you can change it only once.
Select assets, make changes and apply.
Undo (ctrl+z) is also supported.
Thanks!