v16 - SysML directedFeature stereotype

[dan.ashby]

I have found that the use of the SysML directedFeature stereotype does not restrict the list of operations and receptions available for selection when creating a message between two lifelines.  I would expect that the list of available operations would be provided in one direction and then required in the other.  This is true in other MBE tools that implement the SysML language.