How do I add a Search Widget and search options?

You can find WPL Search Widget by following the path: WordPress Backend > Appearance > Widgets > (WPL) Search 

You need to Add The search widget To the " Property Listing Top" position, In this position, you will have the search widget on top of the all property listing page.

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Open the Search widget and click on the " View Fields" button to add the Search option:

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In the opened window you can add the search options by drag in the field area:

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Then, close the window and click on the " Save" button, Now You have a search widget on the top of the property listing:

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Please check This article about what you want to see, how to add/remove a search field to/from the search widget in WPL.

 You may also watch a video about the Search Widget here.