If you are working in the LS-DYNA profile, from the Menu Bar, select LoadCase > Monitored Volume.  Right-click in the Monitored Volume panel to access boundary conditions options.  Otherwise, the following instructions will guide you in each process.

The creation and modification pages for the monitored volumes are the same.

How Do I ...

Create a monitored volume

Modify a monitored volume

Delete a monitored volume

Customize the monitored volume types