mui.DoMethod(id, "Close", listnode$, treenode$)
Listnode$ specifies the node whose list is used to find the entry. The search is started at the head of the list. This can be the string identifier of a node or one of the following special values:
Root
Active
Parent
Treenode$ specifies the node which is to be closed. If there are children of the node, they are removed from the display list. This can be the string identifier of a node or one of the following special values:
Head
Tail
Active
All