You can set this environment variable in a debug configuration, so that the trace is automatically enabled when you debug with this configuration.
mftrace.dest = binfile mftrace.emitter.binfile#location = mftrace.level.mf.rts = info mftrace.comp.mf.rts#pgm = true mftrace.comp.mf.rts#pgmload = true mftrace.comp.mf.rts#syspgm = true