RDi 7.5 changes

RDi version 7.5 makes some significant changes in the way things are
implemented versus earlier versions.
I would appreciate some assistance in learning how to figure some stuff out.

I have a plugin that extends a popup menu using
ISeriesAbstractQSYSPopupMenuExtensionAction. When I right click an object
in my iSeries object filter and select my option, a program is called on the
i. The program returns some data that I show in a dialog.

The existing plugin uses ISeriesObject. From this ISeriesObject I am able
to use getISeriesConnection and create a ProgramCallDocument(AS400 arg0,
String arg1, ClassLoader arg2) to call the program:

<relevent code>
import com.ibm.etools.iseries.core.api.ISeriesObject;
import com.ibm.as400.data.ProgramCallDocument;
private ISeriesObject dataArea;
private ProgramCallDocument pcml;
public MyPgm(ISeriesObject dataarea).... {
this.dataArea = dataArea;
pcml = *new*ProgramCallDocument(dataArea.getISeriesConnection().getAS400ToolboxObject(Display.
*getCurrent*().getActiveShell()), "com.myplugin", *this*
.getClass().getClassLoader());


With the changes made for RDi 7.5, the existing code does not work.
I've now extended ISeriesAbstractQsysPopupMenuAction.
Neither IQSYObject nor QSYSRemoteObject provide the getISeriesConnection
method so that I can create (use) the AS400() connection.
1) Is there a different type that I should use?
2) What is the best way to get the selected connection to pass to
ProgramCallDocuement?

I have other plugins that I will be working on.
4) How can I tell if I want to use QSYSRemoteObject, QSYSHostMember,
QSYSHostSourceMember, QSYSRemoteMember, IQSYSObject, etc?
3) How would I know this information? Is there a document that I'm
missing? Am I looking at the wrong websites for info?



Thank you
-doug