How to pick a theme for a page on your website
Login to your website, or if you are already logged in proceed to step 3.
Select Outlets/Plates from the horizontal top menu.
Hover over pages from the admin panel on the left side then select all pages (Missing Screenshot)
Hover over the page you would like to add the theme for and the hidden options will appear.
Select Edit with Elementor.
You will be taken to your new page and in the middle of the page there are two icons one with a plus sign and another with a folder sign.
Press the folder icon to proceed to adding a template
A pop up display will appear, on the header of that pop up, select templates then choose your favourite template by pressing on insert a pop up will appear and you just click yes to proceed.
Shortcut: login> pages>all pages>hover over the page you want to edit> edit with Elementor> press folder icon> templates> choose one> press insert> click yes