The rpress_settings_gateways filter is applied add payment gateways settings in Restropress.
function rpress_settings_gateways_callback( $gateway_settings ) {
$rpress_tpay_settings = array( array (
'id' => 'rp_tpay_settings',
'name' => '<strong> Restropress Tpay Settings</strong>',
'desc' => 'Configure',
'type' => 'header'
));
$gateway_settings['restropresstpay'] = $rpress_tpay_settings;
}
add_filter( 'rpress_settings_gateways’, ' rpress_settings_gateways_callback', 10, 1 );