Did you try edit connection and choose the V_FACT_ENTRIES table? Right click on data source T_FACT_ENTRIES and choose Edit data source. Choose the V_FACT_ENTRIES table from window browser. Let me know if you still have to start from the scratch.
That's amazing. You've just made a couple of people very happy and slightly awestruck.
Just wanted to say I've been searching for this feature for two years now. I'm so appreciative that you had an answer in Fabian.