Where is 'Model Categories Picker'?

how to select categories? can not find any more Model Categories Picker ?
Do I have to use Category component and right click?

Now you have all Built-In Categories here.

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I got it but I struggle to select three…in search …had to use two components

You can still scroll that list and select.

The search is meant to help found or filter items on that list but if you know the exact name I recommend you using a panel with a multiline text and connect that panel to Query Categories.

As @kike mentioned, Query Categories and connecting a panel with category names works better in my opinion.
One of the problems I faced in Dynamo was, everytime a new category comes to Revit with a new version, their location in this kind of dropdown list changes. So to prevent that, querying category with a text is safer.