With portals, you can keep your graph nice and clean. These nodes forward the execution flow or the variable connection without showing a wire.
The portals connect to each other with name strings. These should be unique.

Variable
Variable Portals connection uses a One-to-Many design. You can have one input, and any number of output portal.
You define the name on the input portal and select from a dropdown list on the output portals.

Execution
Variable Portals connection uses a Many-to-One design. You can have one output, and any number of input portal.
You define the name on the output portal and select from a dropdown list on the input portals.