Modifying the content of the dashboard & query tooltips

Hi,

I want to reduce the number of fields displayed in the tooltip that pops up when hovering on a work item in the dashboard or in a query.

At the moment, the tooltip contains all the fields, and I want to only display the key fields (if a user wants more info, they can open the full record). Basically it seems that by default the tooltip uses the same editor as the main Work Item Editor.

I can't find where to specify the editor that I want to use for the tooltip. Where is it?

Thanks!