Un-Override all Smart Class Parameters at once

One of the first steps to configuring a fresh installation of Foreman is to
set up NTP. I installed the puppetlabs/ntp module and head over to
configure the "servers" parameter in the ntp class. Per the tutorials, I am
supposed to override only this parameter. However I find out all parameters
here have the "Override" box checked and I have to manually un-check these.
Is there a way to un-check all of them at once? I am using Foreman v 1.14.2.