shown in other instead.
Video Tutorial: How To Quickly Replace Assets in the Project
Often, when developing a project you'd like to replace one asset (or a group of similar ones) with another asset of the same type while keeping all references.
To do that automatically, right-click the asset's icon and choose Replace Assets. Then select the asset that will replace this one.
This option might be very useful, for example, when you want to replace certain textures in all materials with a new texture, or when building a prototype of your scene without having the final geometry yet by placing some simple blocks (proxies) to replace them with final models when they're ready.
- Article on Organizing Assets