QMenu Multiple selection problem

[vajindarladdad]

Hi all Experts,
I am developing an application in which i am using QMenu.
I have added QActions into the menu , which are checkable.
My requirement is that
1) I should check multiple actions when the menu gets displayed (without vanishing the menu).
2) when i click ouside of the menu the menu should get vanished.

I have attached the images which will make you understand more about my requirement.

I want to deselect first three actions without the menu getting vanished.