This was originally posted on RT forum, but their support doesn't make much sense as always. And I know this doesn't have much to do with IT's products, I am merely seeking some suggestions; moreover, since many of IT's particles also functions similar to rokSprocket(listing contents), I think this is somewhat relevant.
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rokSprocket is a great extension, I prefer using it to construct my article list page. But I am always troubled by a problem, described as follow.

I believe what I want is quite simple and common to many users:

On article list page, Mosaic displays a list of articles which users can click to enter the article page;
On article pages, the Mosaic module doesn't display, and Breadcrumb shows something like "Home>category>article";
When users click "category" in the breadcrumb, they will be back to the aforementioned article list page.


To my surprise, this is actually quite hard to achieve without hard coding. I will try to explain my approaches:
Firstly, on the article list page, since there is already the Mosaic module listing the articles, I don't want the "page content" to display, to do this, I can either use Gantry5's custom page as menu item type, or create and use an outline(tempalte) without the "page content" position, then select "category blog" as menu item type.
If I use custom page, since there is no menu item associated with the articles or their category, the article pages will inherit homepage's itemid, hence displaying modules that are only supposed to be shown on homepage, moreover the breadcrumb won't be showing because we ususally don't show breadcrumb on homepage. Some might suggest create a hidden Category Blog page, but this way the breadcrumb on article page won't be right: although it shows "home>category>article", the "category" would only link to the hidden page, which will lead to the following issue -
If I use the Category Blog menu item, then besides Mosaic module, the article list page will display another list of articles(coming from com_content). To hide the additional article list, like what was mentioned above I can create a outline without "page-content". But now the article page will be blank too because it is also using the no-page-content outline.

Now maybe the simplest way to overcome this is using CSS to block the "page-content" on "Category Blog" page only. But I really don't like this workaround because it means redundant loading of the page. I've also tried Module anywhere, but it seems it can't deal with this issue either.

So with current Gantry5 framework and Joomla 3.8.2, is there a way to overcome this problem without writing PHP/CSS/JAVASCRIPT? Is it possible to assign different outlines to the article list page and article page? Not that I can't do coding but if there is a possible solution that requires no coding, I always prefer using it.