To open the Level Blueprint Editor, click on the Blueprints button, which is at the top of the main screen of the Unreal Editor. Then, select the Open Level Blueprint option, as shown in the following screenshot:

The Editor will open with Level Blueprint of the current Level. The Level Blueprint Editor is simpler than the Blueprint Class Editor because it has only the My Blueprint panel, the Details panel, and the Event Graph Editor. The following screenshot shows the Level Blueprint Editor: