Use these options to modify an asset by adding or removing nodes. Maya returns an error if more than two assets are selected. See also Add nodes to an asset.
(Add to Asset only) In addition to the selected nodes, any nodes connected via incoming or outgoing connections are also added to the selected asset.
(Add to Asset only) In addition to the selected nodes, any connected shader nodes are also added to the selected asset.
In addition to the selected node, adds or removes other nodes in the hierarchy based on the selected option.