category only homepage

is possible that the category is only visible on the homepage and not the home of the categories?

You can change the CategoryTemplate.ProductsInGridOrLines.cshtml layout to "_ColumnsOne".

You can create a new two-column layout for the category page in which you want to delete
"@ Html.Action (" CategoryNavigation "," Catalog ", new {currentCategoryId = currentCategoryId, currentProductId = currentProductId})".

Or you can do the following (in _ColumnsTwo.cshtml):
if (currentCategoryId == 0)
{
@Html.Action("CategoryNavigation", "Catalog", new {currentCategoryId = currentCategoryId, currentProductId = currentProductId})
<div class="clear">
</div>
}
That is, the navigation menu will be displayed on all pages except the page with the categories, since only they currentCategoryId not 0