Working With Variables
How to declare a variable of type Entry
Put your activities inside a Sequence or Flowchart. Only there you can declare variables.
Open tab Variables in the designer

Click onto Create Variable and enter a name for your variable, e.g. "e"

Click onto the text String in the column Variable type to change the type

Select Browse for Types… and then enter the text Entry

Select the type Entry and end up with the following result:
