I have set my schedule to a variable 'sysPollingInterval' so that I can easily change it without having to edit all of my dozens of configurations.
(I cannot set it as inherited as this would prevent me from pausing individual jobs.)

When I look at the job details the schedule shows as 'Every 10 minutes'; however, on the dashboard it shows as 'Every ${vars.getValue("sysPollingInterval")} seconds'
I think it should show the number on the dashboard.

Perhaps a better long-term solution would be to allow the polling interval and random range to be inherited, but the actual enabled-ness of the schedule (and therefore the pause ability) to be per-job.