Figure 1: Assign Menu ID in Run Process element in UI Builder
In the Run Process element itself, assign a Menu ID to give it a specific identification so that it can be called easily later on.
Figure 2: Assign Hyperlink to the Run Process element's Menu ID in List Builder's Hyperlink Action
In the List Hyperlink Action's properties, key in the Menu ID earlier into it.
Optional: You may also want to initialize the "Run Process" form with a value.
In the "Hyperlink Parameters", key in the corresponding parameter name with the matching field ID. (E.g. In the form, it has a field called "title"). Remember to add in the prefix "fk_" or "fke_" to the parameter name. The latter one is used as a flag to allow the field to be edited.
You will also need to map the form into the "Run Process" activity in your process's activity mapping.
Figure 3: Optional - Adding a Run Process's Form.
Figure 4: Viewing the List and starting the process from hyperlink
Go to the published UI and observe on how the link is constructed.
Figure 5: Starting process from the hyperlink
A new process flow will start with the form partially populated after clicking on the hyperlink.