PrefabEditorYou can edit Prefab which could not be edited much unless you place it on Scene.
UnityEventDrawerExThis plugin extends the UnityEventDrawer to display runtime calls in the inspector.
Originer🧳The package for Unity3d which makes it possible to automatically resolve UPM dependencies on projects located on Github
EasyEventEditorDrop in replacement for the default Unity event editor drawer that allows listener reordering
UnityPickersValue selection controls for Unity game engine editor.
GroundGrowingOpen Source Unity3d Planetary Terrain Editor Extension with incremental background updates via multithreading