Toshiba RAS-10N4KVRG-TR Owner's Manual page 16

Group operation.
Maximum 3 groups
1 Group maximum = 10 units.
Add group
Add AC in group
Delete AC in group
Please make sure Factory Reset is
performed before deleting AC from mobile
application.
(See owner manual ʺPress and hold MODE
button on remote control for 5 second and
active dL functionʺ)
M MOD MODE