Currently, you can select the name and email for the emails within the workflow, I think it would be ideal if you can select what number you want to have the automations go out as well. This way if you are working with clients that have locations with different area codes, we can provide the automation to fit that specific local area. Or even an additional option with the SMS action within the workflow.
Some clients prefer to have one subaccount with multiple pipelines instead of being in and out of multiple subaccounts.