Changing gamemode single play

With the new update I don’t see any feature to change your gamemode…is there a way? Or is my only option sandbox in single player?

no, you can select the Wrench symbol on the right of the GUI.
You have 3 icons, 1 for a thumbnail view of your maps, 1 for a listed view of your maps, and 1 for options, you can set things like proplimit there too.

Ohh, wow that was hidden. Thanks!