Indented todo list at Todo mode

1

I wish to indent my todo list.
If I use Github style todo list,it’s possible. But,in this way,I can’t use clickable checkbox.

Can I turn Github style todo list checked by keyboard shortcut, or indent todo mode’s todo list?

2

One pattern is, of course, this:

3

I see,“parent” item have to have .todo.
If possible, I want you to indent naturally.
But I got to help. Thank you.