Maintain history for collapsed and expanded trays in iView

Hello Experts,

My requirement is as follows-

I have an iView with multiple trays. Each tray has its own UI elements.

At runtime user is allowed to collapse/expand trays by default. However, once the user logs out of the portal and logs in back all the trays are expanded again.

Is there any way in which I can maintain the collapsed trays even after the user has logged out and logged in again?

There is a personalization property for hidden tray but none for collapse/expand.

Please help me out with this issue.

Regards,

Nisha.