add a perform to submit choices.php

I’ve a kind which does

<kind methodology="publish" motion="choices.php">
.........
<enter sort="submit" class="button-primary" worth="<?php _e( 'Save adjustments', 'bsp_style_settings' ); ?>" />

I’ve all of the register settings/admin_init’s and so on. and all of it works positive and saves the information to WP_Options a part of the database- nice !

All I wish to do is add an extra perform that can also be carried out on submit. So easy name to say

perform also_do () {
xxxx
}

so this perform additionally executes when save is pressed.

Any options on easy methods to clear up this?