Hello and thank you for your reply!
1. If you hover of the item store on the website you will see that you get a category named "minerals". I tried to create a category called "jewellery" so that when you hover "store" you will get two things : Minerals and jewellery. I did create this second category standalone,but it didn't work for some reason,so i had to create a subcategory under "Minerals" and name it jewellery. The categories both display nicely,but i don't get this effect when you hover Store,to get those two categories.Here is a screenshot with red mark you can see that i have a category called Jewellery that doesn't work,even if i have a item inside it it doesnt show. Instead i created the subcategory jewellery (Green arrow) under Minerals-Crystalls (Unwanted). Why i can't create a new category like minerals-crystals?
2. Sorry but i do not understand what i need to do. There is only one module assosiated with Hikashop,on my module manager and if i disable it,all products dissapear. Same goes for Display->Content menus. Τhere i get two items : Store, and Minerals-Crystals. If i disable one of those i lose important things. Please let me know what kind of screenshot you need and i can provide you.