Drill down to week only

Hey,

I don't want my stacked line to be able to drill down to days, just weeks. As for example i removed days and added week of the Timeaxis, see Share axis, but it still go down in days if i use the drill function, if i just the button for just going down a hierarchy it stops at weeks, as I want to. Can I do this for the drill function as well?

Kind regards Agnes