You can connect assets to other assets or nodes in the Hypergraph Connections editor and Hypershade by dragging connections.
Before you can do this, you must publish the output attributes of an internal node to the asset.
To create a new connection from an asset to an external node
-click
the bottom-right corner of the asset (a small empty arrow) and select
the output attribute from the list.
A list of input attributes is listed when you hold the mouse button.
You can also
-drag
the asset onto an external node and select an attribute to connect
to from the list that appears. This opens the Connection Editor where
you can setup multiple connections at once.