How to: set objects to not be "pickable" in the Scene Editor

It happens all the time: I click on an object but instead i pick the object in the background.
How can I set an objekt to not be “pickable” in the Scene Editor?
(sry for bad english and noob question)

Do not click on the object in the render view, select it in the Hierarchy view. :wink:

Set them to a separat layer and lock that layer.
Then you can not select the objects on that layer.

That worked out well.
Thx