Fanuc Robot group 2 position monitoring

Hi everyone, i need to turn off a digital output when the group 2 is at Home. How to monitor the position of group 2 in teach mode and auto mode?
in auto mode its $SCR_GRP[n].$M_POS_ENB=TRUE, but it doesnt work in teach mode.

Yes,it is showing for group 2. A DO value can be assigned but,

I have a gripper which can open and close and also it can rotate. So, I have to turn off the gripper rotation if its at home.
DO [300] = Gripper Open.

DO [301] = Gripper Close.

DO [302] = Gripper to 0 Deg.

DO [303] = Gripper to 90 Deg.

So I need the DO 303 to be always off when gripper reach at Home position. How to block it in this situation ?

thank you, that was helpful.