Hello, how to make "search" in my own custom application? Just like "Downloads".

 

 

Is there any Extension to make it? Maybe im blind..

https://invisioncommunity.com/developers/docs/fundamentals/content-items/searching-content-with-content-items-r89/

You first need to add the ContentRouter extension to your app, IIRC.

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Note that you must also have implemented the ContentRouter extension.