Report Builder what does unchecking 'Display header for this page' property actually do?

Yes to add/insert a page header we have a large number of options.  But to restore a page header there appears to be none.  I believe that the 'Display header for this page' property should not be there and is a bug.  Just raising the issue here to make sure before I go ahead and raise a bug report.

And for correctness lets list all the exciting ways m$ allows one to add/insert a page header (and footer) in RB.

- Insert > click Header icon > Add Header

- right mouse click on Body object > Insert > Page Header

- right mouse click on Report object > Add Page Header

Please post here if there are any other ways the Page Header/Footer can be added and inserted so we can learn even more ways 🤣 to insert Page Header/Footer.   

Thank you m$ for making so many paths to add/insert these major objects but none to restore an existing but hidden Page Header/Footer.  This is a bug that one can loose a whole lot of work in one single click.