Question: how to create ktr file?
Answer: Click File Open and navigate to find the SDR_data. ... 
In the same transformation, right-click on the Call_ML_SDR job and select Open Referenced Object Job to open the _ML_SDR. ... 
Right-click to edit the Publish Model step and, if requested, enter your user id and password for the Pentaho Server. ... 
Open the _ML_SDR_REFINERY.