DEFER - CSD05 - Use "set_property" methods to "push" values from template inputs to nodes (templates/types)

Use "set_property" to "push" values from inputs to Nodes (templates/types)
May be added alongside get_property as "best practice" <or> replace get_property if this assures reusable models.

To have equivalent functions to the "get" methods already in the working draft we may need the following to be complete:
• set_property
• set_ref_property???
• set_output???