In several examples, we introduce new units via G4UnitDefinition(), which in turn register them in G4UnitsTable. (see PhysicsList constructor of Hadr04, where millielectronVolt is defined) In sequential mode, the UI manager recognize these units; we can use them e.g. /gun/energy 25 meV …etc… It is not the case in MT.
Dear Michel, Thanks for reporting this issue. I confirm there is a problem, and would require some time to fix it. The fix will come after the 10.3-beta release. Makoto
Fix is committed to the repository and will be included in the next release.