Ability to trigger screening services in different ways for different types of candidates

Summary

Screening services within application flow/triggered by CSW

Content

Hello

We currently send out a screening service test based on the New step on all of our CSWs, however due to drop out rates we are looking to move this into the application flow. The only challenge we are finding is that for agency candidates who have an agent apply on their behalf, we want a way to automate the test to be sent to them to complete rather than having it in the application flow.

Is there a way to do this? 

Please note that we do not have an agency CSW.