But... keep in mind that the 4.5 is a beta... a special version (almost empty) to be used for the "NESmaker Summer Camp". Following the tutorial videos Joe is making during the period of this Camp, we can improve that adventure module and have a more complete one by the end of the month.
Currently, there is no platform module in the 4.5
You will have to wait some weeks (July maybe?) when the definitive version will be out (with all the default modules).