Appearance → Widgets
Then click to the Appearance.
We using Blog sidebar for the page : Blog , Single , Search , Author ....
and Sidebar 1, Sidebar 2 for the page :Pages
Because the pages use Visual Composer plugins so you can get sidebar1 or sidebar that you like
We created 7 widgets , you can drag it to sidebar that you want
3. Most Popular Post
You can choose show : Featured posts or Most Views
4. Most Views
5. Slider Posts
It is showing :Featured posts in the layout slider