How to lock/freeze Fanuc robot teach pendent?

Hi, folks, how are you?

Is there some way to lock/freeze Fanuc robot teach pendent? Since some of our operators jumped program lines with teach pendent to keep the robot going, we got a few quality issues.

So we want to lock up teach pendent that nobody can jump the line, unless we have the key or password.

Thanks a lot.

Cut the 24VDC power wire going to the pendants cable & run it through a key switch that the operator doesn't have access to to key?

Thanks a lot.