How can we use map attribute type in editor area section of cmscockpit to edit or add new values?

[Former Member]

I have created a new item type and its attribute's are of type att1 - String attr2 - Map> then i have made a collection type of the above item type and attached the collection to a custom component as an attribute. Now i want to see,change or add new values to the items type via cmscockpit. how can we do that.