User Problem

Currently, it's not possible to automatically check/uncheck all checklist items using scheduled automations. The action, which exists in Automation Rules and Card Buttons does not exist in scheduled automations.

Suggested Solutions

Similar to Rules and Card Buttons, add an action to check/uncheck all checklist items in the list of available scheduled automation actions:

Current Workarounds

Make use of Rules or Card Buttons, although both these options don't provide a means to be able to perform this action on a scheduled interval or automated basis.