View group context . . Doubt

Hello All ,

In my .htm of an table view i have this line of code .

displayMode = "<%= controller->view_group_context->is_view_in_display_mode( controller ) %>"

1) So what is this "controller->view_group_context" exatly ? where the instance of this is created ?

2) Is this related to SET_VIEW_GROUP_CONTEXT method present in the view ?

Thanks and Regarfs,

Nikhil K