Hello, Niksamarkovic4
Once you activate WooCommerce (it would be better to create a backup before such a big changes you plan) > add categories and products, then you will be able to configure displaying of mentioned pages via Theme Options > WooCommerce > Shop and Single Product Builder.
If your site is live, you can create a staging site (activate theme using the same purchase code), and do test there first.
Kind Regards,
8Themes Team
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