All of our data modeling tools allow you to define aliases of data types that can be used instead of standard data types. The advantage is that such a data type can be added to a diagram, the diagram can include a line pointing to the object where the data type alias is used, and if you decide to change, for example, a data type parameter, you can do so in only one place.
How to create a datatype alias?
Click the Other button on the main toolbar, choose Add Datatype alias and then click anywhere in the diagram.
Alternate solution: Right click on the diagram canvas and choose Add new object -> Datatype alias. Then click anywhere in the diagram again.
Final step: Specify name for the Data type alias in the side panel.
How to use the newly defined custom data types?
Select the datatype alias from the datatype dropdown.