Sometimes when you are working on a specific feature or a part of a level inside a scene, and you want to tweak see it between Editor/Play time, unity always reset the hierarchy expand from all the items? Scene Keeper is here to rescue! Scene Keeper stores the hierarchy status for each scene, keeping exactly as you left before switching scenes/playing the game/editing the game. Stop losing your flow searching for things!

• Store hierarchy state for all the items between play/editor mode
• Also store when regularly editing multiple scenes, you always gonna see it how you left it.
• Save your last selection on the scenes
• Force especific game objects to be expanded all the time by Right Click/Scene Keeper/Always Expanded

Thats the cool part about it, you don't have to do anything, after adding the package to your project every time a scene is opened / closed all the expanded items and selection will be restored.

If its annoying for some reason, or someone don't want to use on your project you can quickly disable it by the menu Tools/Scene Keeper/Hierarchy/Keep Hierarchy, this will disable it.

For sure the options is there on the same menu Tools/Scene Keeper/Selection/Keep Selection

Yes! If you don't want your selection be stored from runtime you can disable it here Tools/Scene Keeper/Selection/Ignore Playtime Selection, so seleciton will be only stored / restored at editor time.

Unity 2018.4.0 or later versions