macbook pro finder location hide button restore

the Mac user guide does not go back that far. the current version has this suggestion:

• Show or hide all the items in a section of the sidebar: Position the pointer over the section heading until the Hide button  or the Show button  appears, then click the button. For example, to temporarily hide your Favorites, position the pointer over the Favorites heading in the sidebar, then click the Hide button .

it appears that in your slightly older version, rather than the pointy things, the word "Hide " or "Show" will appear when you hover. Click on that word to take the action the word suggests.

To change what is shown in the finder sidebar, use this article:

Change Finder preferences on Mac - Apple Support

The words you wrote above appear to be incoherent word-salad.

Please try again. Many of the most helpful readers here are not native speakers of US English. You need to state the problem clearly, using complete sentences organized into paragraphs.

I don't think I have any such button.

what version of MacOS are you running?

what part of the Finder display has this button? can you post a screenshot of what you are seeing/not seeing?