Returns a comma-delimited list of the names of the current node’s siblings (peers). The current node must be a local node for this function to work. To ensure that the node is local, any formula containing this function must be part of a local derived formula property.
ListSiblings(): String
ListSiblings()
If A, B, C, and D are children of Z and the current node is B, then the return value is A, C, D.