IlluminationCorrection

I’m using sen2cor to transform L1C to L2A product. I read in documentation that is posible to use a DEM to perform illumination correction. The documentation says:

Sen2Cor is currently prepared to make use of two different DEM’s:
1.- 90m SRTM Digital Elevation Database from CGIAR-CS
2.- 90m DTED-1 Format from PlanetDEM
and I read that the processor expects the appropriate DEM data having the form of:
eXXX_nYY.dt1

I would like to know if is posible to use another DEM from other providers, and if is posible which format and how to set the L2A_GIPP.xml file .

Thank you
Kind regards