Help with object_types => options-page

Hi.

I need help to understand something, I looked in the code, on the wiki, on stackoverflow and google and I can’t make it work.

On the exemple on the plugin there are this note.

/**
* Metabox for an options page. Will not be added automatically, but needs to be called with
* the cmb2_metabox_form helper function. See https://github.com/WebDevStudios/CMB2/wiki for more info.
 */

And this part i understand, i know that if i create my hooks with add_menu_page/add_submenu_page i need to call cmb2_metabox_form, it’s a similar behavior of the settings API

What i don’t get it is why i have these options:

'object_types' => array( 'options-page' ),
'menu_title' => 'Site Options',
'parent_slug' => 'tools.php', 
capability' => 'manage_options', 
'save_button' => 'Save Settings',

To use with new_cmb2_box() if nothing happens, i spent 4 days trying to make this work and nothing, i don’t know if is some bug, or if i’m stupid.

As long as I understand, if I have to manually create a subpage, I had used add_submenu_page.

Why those option above need the same information from add_submenu_page and don’t create a submenu page.

I searched on the code where those parameters are inserted on an add_submenu_page function, but i didn’t find add_submenu_page on the cmb2 code.

Any help will be very apreciated.

Thanks.