[JENKINS-13619] - Display default values in multi-config checkboxes

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
[JENKINS-13619] - Check configured options for multi-config throttling

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
[JENKINS-13619] - Committed missing changes

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>