Cannot set new start date on StatusPage component / overriding downtime in bulk

[Michael Leung]

I've changed the startdate to be this year (was using last year to test data) and it's returning:

"You have downtime data recorded prior to the start date you selected. Delete that data (incident or maintenance) in order to select this date."

I've deleted all incidents and mainenances but this error still remains.

I can't see any way to delete downtime so I've set the historic downtime on the component to be 0 minutes and 0 hours but it still returns this error. 

Any way of getting the data reset for components without recreating it?

Or even if there is some way of using the API to override component downtimes that would be great...