I guess everyone has cases when you need to set some material parameters for a certain mesh only once, so you don’t need a dynamic material or a separate material instance just for one mesh. At the moment you have to either set parameters in the construction script or On Begin Play, which requires additional code/blueprint functions.
So I believe it would be great if you could assign a material to a mesh and see the available parameters that can be changed in editor for this mesh only.
For instance, it kind of done in Niagara. If you use a material with Dynamic Parameters, they are accessible directly in the Dynamic Parameters module right away.