All the nodes in the subtree, starting from the Hider's parent, will be "hidden" when you select a node outside that subtree. They will be shown again when selecting a node of that subtree or the parent node.

Nodes are hidden by changing their modulate value. However, the Hider stores the previous modulate values in its *saved_states* property, which is reverted back when the node is shown again.

Description of the properties :