set degrees as default units for offspec job

GUI/Model/Job/JobItem.cpp

@@ -296,10 +296,16 @@ void JobItem::createSimulatedDataItem()
 
     // Set default axes units for simulated data.
     // Can be overriden by units from RealItem
-    if (isSpecularJob())
+    if (instrumentItem()->is<SpecularInstrumentItem>())
         m_simulatedDataItem->setCurrentCoord(Coords::QSPACE);
-    else
+    else if (instrumentItem()->is<GISASInstrumentItem>())
+        m_simulatedDataItem->setCurrentCoord(Coords::QSPACE);
+    else if (instrumentItem()->is<OffspecInstrumentItem>())
+        m_simulatedDataItem->setCurrentCoord(Coords::DEGREES); // Coords::QSPACE is unsupported
+    else if (instrumentItem()->is<DepthprobeInstrumentItem>())
         m_simulatedDataItem->setCurrentCoord(Coords::QSPACE);
+    else
+        ASSERT(false);
 }
 
 IntensityDataItem* JobItem::intensityDataItem()