HI,
I had a quick chat with dev and they told me you can debug the code, when you set a breakpoint into the code, stop/pause the replication and execute the program DMC_STARTER which can be used to restart the replication. Afterwards the debugger will come up.
So far I had no chance to test this and create a how to doc, but anyway you can try - maybe Udo has also some ideas. I am back end of next week and try to create a HowTo doc.
Best,
Tobias