In porfolio templates the user input content is shown before the portfolio grid.
If you want to change the position, you will need to hire a developer to modify the template. We can only provide customization that’s possible using custom css.
As for sidebar.
Scroll down when you edit page.
Find the setting Select Sidebar: to select your side bar.
Then find the setting Portfolio: Sidebar Position to set the position.
You will get portfolio with sidebar