Limit dashboard filter functionality for viewers

[kwmacd]

We have a few dashboards where the displayed data is only valid when a SINGLE ITEM is selected for a filter. We want to have the standard dashboard filters that our users are used to, but we want to prevent them from selecting more than one item at a time. 

In the attached image, we want the red highlighted areas to be disabled (not selectable) for non-owners/non-editors of the dashboard. 

We should be able to publish the dashboard with a default value for the filter and allow them to select a different value, but not multiple values. 

[tobiasritlov]

I agree that we need much more control over how the viewers interact with the filters, so we can decide what options they have.

For instance, for single-select text, there's the option "IS NOT", which won't serve any purpose in 99,99% of the cases, but adds confusion to a filter-component that our viewers/users already find very confusing.