Assets 2

This pre-release includes these new functions:
ENaddnode - Adds a new node
ENaddlink - Adds a new link
ENdeletenode - Deletes a node
ENdeletelink - Deletes a link
ENsetheadcurveindex - Sets the curve index for a specified pump index
ENsetdemandpattern - Sets the index of the demand pattern assigned to a node for a category index.

Some examples based on community questions.