Opencart to remake a quick order

For the site on opencard 2.3 https://aromoluxe.ru/duhi-lady/tualetnaya-voda-3-imperatrice-dolce-gabbana-100ml-edt

you need to buy a button in one click to add in the category and the module on the main, just make that it orders fall into the general (now orders fall to a separate page in the admin)