Is there a way to model a handler functionality in a process flow?

Hello,

I have a handler functionality that gets fired when a record update is executed in a grid (by clicking the save icon).

Since the handler contains multiple logical steps and will soon get convoluted, I was wondering if there is a way to model this functionality in a process flow - it would provide a better overview of the functionality with its actions and decisions.

I tried implementing such a process flow, using the “Edit Row” and “Grid Edit” actions that led to a “Start Task” action (containing a template with the whole handler functionality as a test), but with no success.

Thank you.