SYSML17 — ProxyPort with FlowProperties

I struggle to use proxy port with flow properties. One idea is to use a behavioral port and to bind the flow properties with the behavior parameters. In chapter 9.3.2.7 about FlowProperties the spec states:

The binding of flow properties on ports to behavior parameters can be achieved in ways not dictated by SysML. One approach is to perform name and type matching. Another approach is to explicitly use binding relationships between the ports properties and behavior parameters or block properties.

What are port properties? A port has no properties, but the type of the port, e.g. a InterfaceBlock. And these properties are the same for any usage of the InterfaceBlock and I can’t use context-specific binding relationships.

Proposal: ProxyPort with FlowProperties

The bindings between port properties and, for example, adjunct properties for behavior parameters are context-specific. The statement in the issue text "I can't use context-specific binding relationships" is wrong.