You can turn it in manually but for this blueprint in order for it to turn off after you have turned it on the trigger must be triggered (motion sensor) after it was turned on.
If you are looking for other options then you may want to consider some other blueprint I have created. It is realy up to you and what your trying to achieve. Below are 2 links to some other blueprints of mine.
Entity - Run ON Timer
Turn Light, Switch or Scene On & Off with Trigger Conditions