best method to show conditional data?

[#1]

Again, new to QlikView, just wondered what is best method to show in a worksheet data between a certain range, for example, only show data where a particular value is between x and y.  If this was to be deployed to user base, would not want them to have to do this via edit script ideally....  Is there another way apart from highlighting relevant values in the list box?

Thanks

[#2]

You could try calculated dimensions:

Like:

Aggr(If(Sum(Sales)>1000,Customer,'Others'),Customer)

This should only give you a list of customer who have sales over 1000 and rest will be clubed under "Others"