Document list in task

I am unable to use document list in task. I am invoking an IS service in my model, the ouput of which is document list. I need to show the document list in inbox default view so that every item in a list is a task (One row for each item with task Id).

I drag and dropped the document list from Managed beans → task search provider → Business Data → myDocument to default view. It creates a table but when I go to MWS under my task inbox, nothing shown up there. Also, if I go to “Overview” tab under task summary page and business data on right side, it shows document and not a list. I tried editing it and making it a docList but again it changes to a single document.