Use the Open Level node, and type in the name of that level. To use Load Stream Level you have to setup level streaming.
For uploading screenshots just hit the little picture symbol right above your text box. It’s where the B for bold and I for italicized is, and all that other good stuff
I am deeply moved. I will cherish and frame these thanks. Please accept my answer as a final thanks and as an eternal guide for future users who encounter this grievous problem.