I've created a shopping cart with many articles say item1,Item2,Item3

Item1 is linked to a hidden page say page1 where it contains many details about item1: image, text...

On the main menu i have an option say Shop Online where it shows the shopping cart. When i click it, then i click item1, it suppose to show the special page linked to item1 on the settings of the shopping cart. but that doesn't happen instead it shows item1 just like the other items on the show box. How can i fix it ?

I have version Website x5 pro 2020.1.12

Thank you