Making iView take over Portal Content Area based on Mode

I have a custom-developed iView, based on AbstractPortalComponent, and I need to have it take over the entire Portal Content Area when it enters a specific mode.

The iView will normally be configured on a page with several other iViews and will take up only a small portion of the Portal Content Area. But when a user clicks a button on the iView, I want it to take over the entire Content Area. When the user clicks another button, I want the iView to return to its normal display state. Can this be done?