Area name parsing in filename desc strings

In the desc strings of the filenames and also in the titles of the plots, the group and area name are written without an underscore. For example:

sub-01_sample-s4981_chunk-461_desc-Supplementarymotorpresma_CorticalProfile.png

It would be better as:

sub-01_sample-s4981_chunk-461_desc-Supplementarymotor**_**presma_CorticalProfile.png

In the JSON sidecar file in sourcedata, it is also written with an underscore. For example in V1: "BodyPartDetails": "Visual**_**hOc1"

Without the underscore, it becomes unnecessarily difficult to parse the actual area name. If using an underscore is technically not possible, I would suggest omitting the part before the underscore entirely, as the remaining name should still allow an assignment.