make collapsable?

[JamesRamm]

I know bootstrap components can be made collapsable with a bit of work (although im not sure this works well with modals), but it would be good if you could provide a short cut to be able to collapse/minimize modals.

perhaps a CSS class that can be added to modal-header or an element in the modal, such that when the element is clicked, the modal collapses to just that element...