Customizing Work Manager 6.1 to create notification and attachments

Hi Experts,

I have a requirement in Syclo to customize locally created notifications to upload attachments in single transmit. For this my idea would be

1. Modify rules in Agentry to enable attachment for notifications not posted
2. create custom notification post steplet and stephandler. Stephandler will contain standard NotificationAddPostBAPI
3. Stephandler run() method will also include Document Capture BAPI that will be triggered multiple times based on the number of attachments per notification
4. BAPI's will remain same (Standard) for Notification create and attachment upload at ABAP layer

I would need correct direction to get this achieved. Any other options too are welcome.