Currently, it is possible to know if a segment was machine-translated by checking the m:trans-origin attribute in the bilingual MXLIFF file, however, no information on the used MT engine is provided.
Available workaround (if any):
It is only possible to find which MT engine was used for a specific job by opening it in the Editor, selecting a machine-translated segment, and checking the information at the bottom of the CAT pane.
Information about the used MT engine is provided in the MXLIFF file. It could be included in the trans-unit or in the file elements.
Checking this information from the Editor is not helpful in case comparison and analysis of used MT engines in all processed jobs must be performed.