Let me clarify my question further -
I do understand that I can pre-filter the data while creating the slice and add that slice on the main dashboard (well that works!) but I don't want my end user to modify the slice. I want him to have filters on the main dashboard by which he can change the slice data. For instance - filter by date : last 10 days only and then slice info will change to only last 10 days or a given date range. Another example: I want my data filtered by a given dimension X so I can create a filter on the slice with values of dimension X and when the end user will select the filter, the data in the slice should change automatically on the main dashboard.
Hope it makes more sense now :)
Thanks
Sid