Scenario step "Update API deployment" : add option full update / light update

In a scenario we can add a step "Update API deployment", but it only performs a light update.

I would like to choose between light or full update.

Use case example: a dataset is read outside the main function in API code (in order to optimize), and I need to run again that code after the dataset has been updated, without publishing a new version of the API (no code has changed and dataset is updated almost all weeks). 

I can do that with python custom, but with a standalone deployer I need a secret to connect et get deployments, and as a user I don't have that secret.