Delete Volume on Instance Delete

Hi all, I was able to set "Create new volume" to no by default on the launch instance page by adding the following to /etc/openstack-dashboard/local_settings.py LAUNCH_INSTANCE_DEFAULTS ={       'create_volume': False,} Is there anyway I can set "Delete Volume on Instance Delete" to yes by default should someone select to create a new volume when launching an instance. I tried the following but no luck LAUNCH_INSTANCE_DEFAULTS ={       'create_volume': False,       'delete_on_termination': True} Thanks for any help/info in advance. Regards,Derek