[NTG-context] placing registers on the same page

I currently have a problem setting the indices of a book. A minimal example \defineregister[mouse][mice] \setupregister[mouse][n=2,balance=no] \defineregister[house][houses] \setupregister[house][n=2,balance=no] \starttext rodents\mouse{rats+large} home\house{ranch+split-level} \page \placeregister[mouse] \placeregister[house] \stoptext places the second register on its own page. How can I get the second register on the same page as the first? Alan