Set active layer for created objects I noticed when I add objects to my scene they will be created in the layer 3. It isnt like that from the beginning but it suddenly starts to place new objects into the third layer after some time working. 

I dont have any problem with that since I just can use the third layer as "main" layer. My question is if there is a possibility to set an active layer where new objects get placed into? So that I have control over the objects placements in layers from the beginning. For example when I know I place a lot of "unnecessary" stuff I choose one of the last layers and dont have to manually drop them into that layer after i created them. 

Thanks in advance
Uncheck and check on your "active" layer with Shift.

Objects adds on last selected layer, so if you turn off and on the layer, it will be  "active" 

Also, you can read about it: Active Layer Indicator