Codolex flow classes have the same purpose and meaning as classes in code. Within a class, you can define private, protected, and public methods, called flows.
Create a flow class by right clicking on the "Flow classes" item below an open module.
Give a name for the flow class and click "Save". The flow class will appear in the project explorer. It is not necessary to use the prefix "T" for a class. Codolex will add the "T" when the source code is generated.