Create Task, Sub-Task under Deliverable in PDM

We have activated the scope by selecting SAP recommended Building Blocks.

After activation, we found that most of deliverable DO NOT have Task and Sub-task. We need to update manually for client project. That task would take much time and exhaust end users.

We will provide our client project WBS for updating the set of Task/Sub-task for PDM. Could you please consider this improvement of PDM? Exhaustive covering Task/sub-task is important part of PDM.