Change Management - Amend Scheduled Start/end date on Submission page after dates have passed

Change Management - Amend Scheduled Start/end date on Submission page after dates have passed

Hi, I am extremely new to SD+ so apologies in advance if this is documented somewhere.
We have a number of Changes that are at Implementation > In Progress status, with dates now in the past & work not yet implemented. These date fields are those set at the "Submission" stage (so not the schedule date found against the Planning stage).
Is there a way to update the dates/reset the change back to a previous status to allow the record to be updated & re-submitted?
Thanks

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