Within VeSys 2.0 Harness, when running any of the reports - you can select multiple harness designs. However, you are requried to have each harness diagram open, for them to be listed within the Report console. The result is you will get a single report with all harness design data (from multiple harness designs).
is this somehow possible in harness xc ?
Yes, and as Nuri mentions, you must have each diagram open in order to see it in the list.
Multi select the designs with Shift or Ctrl key.