How to open or close Jaco v1 Gripper after moving the gripper to another location?

edit

There's no mention of this here https://github.com/Kinovarobotics/kin...

At the moment all I do is run the following

I home the arm using -

rosservice call /jaco_arm_driver/in/home_arm

I then close the gripper (if it's open) using -

rosrun jaco_demo grip_workout.py jaco 60 60 60

I then move the arm using -

rosrun jaco_demo joint_angle_workout.py jaco j1 j2 j3 j4 j5 j6

And then I try to open the gripper using -

rosrun jaco_demo grip_workout.py jaco 0 0 0

but this time nothing happens. If I "home" the arm again and then try to open the gripper. It opens up.

Is there any solution on how to do open or close the gripper once it has moved after being "homed"?