Where is the modX product catalog?

Question

MODX

The situation is this. I got to the modX engine for the first time. Online store site, there are many products. But I don't see them in the admin. I see categories in which there are other categories and .. in which there is nothing else. Here is
a screenshot: https://yadi.sk/i/sxG-xvS0cmkCn
if I go to a certain product on the site, I see that it belongs, for example, to the "printers" category, and that, in turn, is a child of "Peripherals and software".
But the fact is that there are these headings in the admin panel, but they are empty. Therefore, they serve only as a kind of framework. Then the question is, how are goods added? All clambered to a headache, but did not find anything.
Website: www.sirius13.ru

Answer 1

If all are empty, then they are simply created for clarity or test. For example, a category is displayed in one template, child documents (products) in another. If I made up, someone on Denver or something like that. It just left everything blank. Then I followed the link of an empty document and looked at how the page (layout) looks like. For example, of course he explained.

Answer 2

look on tv

Answer 3

You have the Shopkeeper module installed and the products are stored in its table.
Go to the modules, open this module, follow the catalog link, and select the already required categories for editing products.