Situation:  New Hire Form used by Hiring Manager to start the onboarding process.

I'd like to pull existing applications stored in Laserfiche to present to the hiring manager a name, address, etc... so that when the form is opened and started, the hiring manager can see the applicants in a list to choose from.  From there the form would pull address, email, etc.. to put in the form to move onto the HR department.

I can do lookups to a 3rd party DB easy, how do I utilize it or workflow to populate the data that is already in Laserfiche?  I see the "Set Business Process Variables" activity in Workflow, but would like to see an example form/workflow that uses it.