Setting up Starting Level Correctly

I am struggling with setting up the starting level correctly.

The level that starts is always the level I have opened in the editor.

I went to:
Edit → project settings → Maps & Modes → Default Maps

I set both Editor Startup Map and Game Default map to a map. However, whenever I push play, in editor or standalone, the current opened level starts.

Using UE 4.20. Is there other setting somewhere which forces the current opened level to start?