Outliner X is a dockable Maya outliner tool that helps you organize, prune, sort, and color-manage scene hierarchies faster.
key feature
Prune View – isolate selected or colored objects in the Outliner
One-Level Expand – quickly expand only the next hierarchy level
Quick Notes – create bookmark nodes for scene organization
Move & Sort Tools – reorder items and sort alphabetically or by color
ColorMarker – apply Outliner, viewport, or shader colors instantly
Hierarchy Sort – auto-organize the entire scene hierarchy