The blocks like Loop, etc. are not part of HivePress. It looks like you’re using a third-party plugin such as GenerateBlocks, which is a separate block collection and is not related to HivePress core functionality.
In HivePress, you can customize template pages using the built-in tools available under HivePress > Templates , without needing additional block plugins: How to customize templates - HivePress Help Center.
However, please note that third-party block libraries like GenerateBlocks may require additional integration if you want to use them inside HivePress templates.