Hi Arrigo,
Unfortunately such a comprehensive list does not exist for SimpleElastix, however the
SimpleElastix docs show examples with the most important (mapped) functions of SimpleElastix and
the elastix wrapper file and
the transformix wrapper file on the SimpleElastix GitHub repository shows all the functions that are being mapped/wrapped to the python API.
The wrapper files are both C++ header files, but the function names are the same in the SimpleElastix Python API.
I think the combination of the two, should give you a reasonable understanding of the Elastix to SimpleElastix mapping.
Best,
Viktor