Report Prompts in Narrative Section

Hi,

I have a report with HTML form in its narrative view. Its set to"Is Prompted" filter on Client row id, Account row id.

In the weblink,  URL pass the client rowid and associated Accounts row id in the weblink parameter.

As report will be filter on client row id, and DE Collection ID,  HTML form will show information/data for that Client only.

So far it is good. But now i want to give an option to display if needed only specific Account associated to the Client.

Thus how it is possible to provide a prompt asking multi select pick list for accounts associated to this Client. And after run it should show only selected Account with client.