Modularization and extensions
You can use Extension flowchart to break large Flows up into smaller units, or to enable extending a Flow with custom logic without modifying the Main flowchart.

To use this capability, you need to do the following:
- Add a Hook action to the Main flowchart where you want Extension flowchart to plug in their business logic.
- Create an Extension flowchart and add a Hook Handler action. In the Hook Handler action, select the Hook in the Main flowchart that you want to hook into, and then build the rest of the Extension as a continuation of the Hook Handler.
