STM44ae,
This is a stepped profile not a CDA. The 7 DME fix is 12DME from the MAP.
You should descend from 3000 to 1900 at the 7 DME arc point once within 5 degrees of the inbound 342, use level change or vs, but you must not cross the VOR less than 1900 or you will have not complied with the procedure.
Remember the speed this profile is drawn at as a standard NPA.
Once at 1900 you can set up the constant descent profile to start 0.3DME from the VOR set the path angle to 3.05 ( 3.1) degrees, fine tune as needed.
Good luck with the test.
KG