Recently viewed and Related products

How I can display Recently viewed and Related products modules?

You can enable them via the modules manager of Joomla.

And how I can make this modules? Because I cant find them in my Joomla Module Manager...

They are already installed by default with you install HikaShop on your website (unless you had first installed an old (more than 6 months) version of HikaShop).

If you don't have them, you will have to create them based on the HikaShop content module via the joomla modules manager.
In that case, I invite you to:
- use the same options as the recently viewed module of our demo website: demomain.hikashop.com/administrator/inde...omla=1&task=edit&cid []=152
- create a related products module as per our documentation: www.hikashop.com/en/support/documentatio...ct-form.html#related

what login and password I must enter in http authorization of back-end of this demo website?

The http authorization login is there only during the reset process of the demo website so that you don't access the website while the website is reset (and thus see the website half broken). Just try a few minutes later and it will not ask any http authorization.