How to build form for search results page?

I want to build a form for the search results page. Which form do I use, is that in the search tab, listing types or categories in the admin panel? I don't see where to build that. It's when I go to the search page on the website, find a listing and the search-results.html page comes up, the listing is there, but there is no sidebar content, I need to build a form, but I don't know where that area is in the admin panel, can someone help me remember that?

Brian

Hello,

You need to check the settings in your listings type: Listing Type > Edit > Search Settings > Search form > Search form on the Search page

and make sure that the quick form is built in Search Forms for this listing type

also, check in Content > Content Boxes that the box with a prefix ltsb_ is enabled