Detail Marker referencing the sheet number

[Anonymous]

Sorry if this has been discussed before. But I can’t get details to have a live reference link to the sheet number the detail is placed in (the way sections and elevations are)
The sheet No. definition seems to be set manually. With all the detail markers I’ve got, what am I doing wrong here?

[TomWaltz]

You have to check the "Refer to Drawing" box first (right under "Detail Marker 10")

[Anonymous]

thanks Tom,
I seem to always miss the obvious!