Hi,
Thank you for reaching out,
The listings and listing categories depend on the listing types. Therefore, you need to select your listing types in the listing categories for the search section, for example like this ->
And. The search forms and advanced search form can be managed under the Listing types select needed listing type then -> Search forms section -> https://joxi.ru/D2P10nYuwNjVxA
https://joxi.ru/vAWgp8Kh35jMeA
https://joxi.ru/Dr8bOYyCKqZRZ2
https://joxi.ru/BA0gWY0h1xl6X2
https://joxi.ru/Vrw19x8uoWVyE2
Please note, the inventory elements are part of the uListing plugin in the theme by default and the main functionalities come from the uListing plugin, this plugin is one of the theme extended plugins. For detailed information about the theme and uListing plugin, please kindly have a look at the uListing plugin documentation, in order to get more information on how to set listing categories and search -> ?https://docs.stylemixthemes.com/ulisting/managing-listings/listing-categories and -> https://docs.stylemixthemes.com/ulisting/listing-types/search-forms?
Best regards