How to give input to Query Prompt dynamically? Insert List of Values spreadsheet binding is disabled. Destination to Query Prompt doesn't allow to select a prompt.

Hi Experts Image may be NSFW.
Clik here to view.,

I'm a newbie to Dashboards 4.0

I have Dashboards 4.0 SP05 Patch 4.

I'm using BICS connection and utilizing BEx Variables.

i want to give input to Query Prompt dynamically which is based on the another chart. How do i give input to Query Prompt?

Insert List of values option Of Query Prompt in the Query Browser is disabled. Please find the below Screenshot:

Image may be NSFW.
Clik here to view.

I tried to map the destination of Column chart(Insertion) to Query Prompt. But i'm not able to select the Prompt, it is disabled. Please find below Screenshot:

Image may be NSFW.
Clik here to view.

What is the Reason?

Please give your valuable inputs. Thanks in Advance!! Image may be NSFW.
Clik here to view.

-Appu