firemonkey - How to close a TMultiview from code in Delphi XE8? -

i have form speedbutton linked tmultiview component. on multiview have buttons. when clicking on of buttons want multiview close , depending on clicked button, different functions called. have tried set visible property of multiview false, shadow on form remains. if click on speedbutton again, menu disappears, , shadow, expected. there way solve this?

i'm using deplhi xe 8.1

multiview.hidemaster close multi view. call whenever/wherever want multiview close.