You can’t, you can only do desktop or mobile editor.
If you are wanting to do something specifically for a desktop, mobile or tablet then use Wix Window API and the Form Factor function.
https://www.wix.com/corvid/reference/wix-window.html#formFactor
https://support.wix.com/en/article/corvid-writing-code-that-only-runs-on-mobile-devices
https://support.wix.com/en/article/corvid-tutorial-displaying-elements-in-mobile-only
Just change the mobile for tablet in the above tutorials.