Hiding a drillthrough target page

Hi there. I'm trying to hide a drillthrough target page but don't understand the solution. Someone else pointed out if you right-click and hide the page tab, the drillthrough becomes unavailable. The solution I keep being directed to says to mark the page as 'has tooltip' but I don't understand what that means. I don't think I can simultaneously make my drillthrough page also a tooltip page? My drillthrough page is a large table, so I don't believe the canvas limitation of a tooltip wouldn't work...

I basically want to know if I can have a drillthrough target page that can only be accessed via drillthrough and not as a tab.