Simple Report Filter - Remove Webi created All Filter

Hi Everyone,

I created a simple report filter by dragging one of the dimensions into the simple report toolbar. Webi automatically created an All filter which I want to remove. For example, I would like the user to be able to select between 3 countries only. However, webi has added an All Country filter as well.

I'm using webi rich client 3.1

Thanks in Advance.