{ efEDR, "-e", nullptr, ffOPTRD },
/* This group is needed by the VMD viewer as the start configuration for IMD sessions: */
{ efGRO, "-imd", "imdgroup", ffOPTWR },
- { efTRN, "-ref", "rotref", ffOPTRW } };
+ { efTRN, "-ref", "rotref", ffOPTRW | ffALLOW_MISSING } };
#define NFILE asize(fnm)
/* Command line options */