This command allows you to add specific media into library
ADDMLMBRM MLB(TS4300_BCK) VOL(AS0001) INZ(*YES) MEDCLS(SPEC_SHORT)
Add Media Library Media to BRM (ADDMLMBRM)
Type choices, press Enter.
Media library . . . . . . . . . > TS4300_BCK Name
Volume identifier . . . . . . . > AS0001
+ for more values
Add volume to BRM . . . . . . . *YES *YES, *NO
Initialize media . . . . . . . . > *YES *NO, *YES
Media class . . . . . . . . . . > SPEC_SHORT CSTOR, ENTIRE, ENXENTIRE...