Here it is! After many long nights!

Material Details Panel - Gameverse is a Unreal Engine editor extension designed with the purpose to bring centralized, live material instance management directly into the Level Editor, allowing artists and designers to edit, organize, preview, and manage materials across multiple actors without leaving the level viewport or having any extra windows open.

Features:

• Select actors directly in the level viewport or outliner to view all material instances used
• Edit and save parameters with live preview directly in the viewport
• Manage shared instances across multiple actors
• Display material usage information:
• + Which actor(s) use a material
• + How many actors share a material
• Stay entirely inside the level editor
• Supports Undo, Redo, Copy, Paste, live preview, scalar value ranges (clamp), parameter sort priority and group organization
• Execution path filtering (Only displays parameters in use)
• Project settings configuration for appearance, filters and more

Designed to look native to Unreal Engine and behave just like other detail panels do.

Link: https://www.fab.com/listings/14d398c2-0916-42a4-bd22-88135ef6dbf4

Also, check out our product catalog for more production ready tools!

Now with all that out of the way, please let me know if this is helpful for you or a team member! It was designed for level designers and artists to minimize the need to have extra windows up on a side monitor or overlapping windows with the editor, plus some extra features that just made sense :)