Passing list prompt to InList function

Hi,

I have two queries - qry_1 brings back all brands; qry_2 brings back brands via a list prompt to select the key brands

qry_1 result:

brand 1

brand 2

brand 3

brand 4

qry_2 prompt: Select Key Brands

qry_2 result

brand 2

brand 4

Within the report I have merged the brands, I want to display the values for the key brands and roll up the other brands into "Other" e.g.

brand 2...

brand 4...

Other...

I have tried to do this with a variable with the following code:

=IF(brand InList(UserResponse("Select Key Brands"));brand;"Other") - however, the value returned by UserResponse is not suitable for passing into a list.

Does anybody know a workaround for this at all?

Many thanks

David