Is there any way in October to override or delete the first checkbox that selects all records from the list?

I have the config_list.yaml showCheckboxes: true but I would like to do without the option that selects all, so that they can only be selected individually.

The reason is to prevent deleting the entire list, so I accept another possible option.

Just implement some validation by overriding index_onDeleteSelected in your controller to prevent them from deleting over a set number of records.