Force component menu to stay open - Mac GH

Hello all
I’m making a menu for my components that rely on the menu staying open after for example clicking a check box. This is easily done in Windows GH by setting the ToolStripDropDown autoclose to false.
I do this:

menu.MouseEnter += (o, e) => menu.AutoClose = false;|
menu.MouseLeave += (o, e) => menu.AutoClose = true;|

However this doesn’t work in the Mac version of GH. What ever I click and do, it will always force close the menu.
Is there something I can do to keep the menu open in the mac version?
Thank you very much!