The main idea of an archive is to contain all the items on it. With that said, if you want to have two different pages with different projects or galleries on them, you can achieve this by following the steps below:
- Create two categories for projects.
- Assign projects to those categories.
- Create two different pages, set the page template for both of them to Custom Home Page (view the screenshot for details) and select the Portfolio Category from the “Choose Your Home Page” section. Set one of those categories to each page and you’re done.
That’s how you can achieve two “different archives.”
The steps presented are described for projects but you can follow the same steps for galleries too.