Dynamic filter alch_{ $optionsPageID }_capabilities should be used to change the capabilities parameter for the page with a specific ID. The default value is returned with the hook.
Example
We have an AO options page with the id of my-options-page, the code should look as follows:
function change_my_options_page_capabilities() {
return 'edit_alchemy_options';
}
add_filter( 'alch_my-options-page_capabilities', 'change_my_options_page_capabilities' );