Mutli-Select Sections or items in Editor

When reformatting checklists, we’ll often want to set the same property on all or many items or sections (e.g. colors or the keep together flag). This is very bothersome as there is no option to select multiple items or sections at once. Especially when maintaining multiple checklists at once this is extremely bothersome.
Please add the option to select multiple sections or items at once and edit at least those properties that are the same for all selected elements.