> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Creating a Custom Block: Defining an Output

The other key area when creating a CB is the Output. Any notebook with a defined output can be repackaged into a single, customized block, complete with custom inputs and descriptions. To add an output, simply drag the block into the *Output* section of the notebook.

<Frame>
  <img src="https://files.learn.ntop.com/lessons/creating-a-custom-block-defining-an-output/230_5_1-Defining-Output.gif" />
</Frame>