This is an important feature. DAX is very powerful and allows us to create advanced analytics in desktop/import mode, often using calculated columns and tables. Composite models are also a major, recent game-changer. But the current limitation that we cannot create/refresh composite models with Calculated Columns/Tables on the DirectQuery side is very inconvenient and reduces the power and capabilities of analytics in PBI. Please add support for Calculated Columns/Tables in DirectQuery composite models.
Agree, this is a highly desirable feature as creating calculated columns when connected to HANA is a typical use case we are running into.