Global parameters can be used in any patch in the studio and are great to use when you need to keep track of global values e.g. Player health. In Unreal each global parameter can be accessed as its own node that you can use in the Unreal Blueprints.
Below the browser, you can create, remove and manage your global parameters.
Right-click in the workspace graph with a patch selected and go into the Parameters category to select the global parameter you want to use in the node system.
Patch parameters can be added to the patches by either dragging them and dropping them to a place in the patch workspace or by right-clicking in the patch workspace to bring up the node menu where you will find your parameters under the parameter section.
Creating global parameters.