How do I get a checkbox widget to display in views?

How do I get a checkbox widget to display in views?

I'm working on an admin view. This is a list of events where a checkbox widget needs to be exposed for the authorized user to check and uncheck a value that will be updated as 1 or 0 (true or false) in the node's database record. (Eventually I wish to add the weight data field as well to reorder the list). The final result of this Views view will be two pages:
- an end-user plain HTML list without a checkbox widget;
- an admin page with *editable widgets* for flag and weight (list order).

This question is only concerned with the admin view. The boolean checkbox does not display on the admin page. I've read somewhere implementation of a checkbox *widget* is a special block and not a checkbox in the list--is this true?

Troubleshooting this I have checked that,
- the widget is in the content type,
- the view has the value which is to be used for the check box displayed and available in the admin View.
- there is a block associated with the admin page in blocks. I set this to a visible region on the blocks page of my theme. (However, no block is being generated, nor do I understand how this functionality would be enabled without some way to select an item in the list.)

How do I get a checkbox widget to display in views?

My settings for content type:

1) Content types >> My Custom content type >> Manage fields; list of fields:
1.1) Custom flag - custom_flag - Boolean Single on/off - checkbox
1.2) Weight - weight - Integer - Text field

2) Content types >> Custom content type >> Manage fields >> FIELD NAME >> Widget type; Field name -> Widget type
2.1) Custom flag -> Widget type: Single on/off checkbox
2.2) Weight -> Widget type: text field

Views:

3) My Views view settings:
3.1) Format: Table;
3.2) Fields: Content: Custom flag (visible, no results: displayed), ; Content: Weight (visible);
3.3) Page settings: Access: None (restrictions)
3.4) Exposed form: Yes, Basic

Blocks:

4) Structure >> Blocks >> Seven
Block: Exposed form: my_views_view;
Region: Content;
+ Settings:
- Pages: Only the listed pages: my_views_view/;
- Content types: My Custom content type;
- Roles: admin;
- Users: Customizable, visible by default;

Example node:

5) [random node] >> Edit -- Custom flag: checeked