Toolkit and Custom Blocks
With nTop, it is possible to package longer workflows into a block, given the determination of a set of inputs and the desired output. The two lines along the left side of the block denote a toolkit block or custom block.

Toolkit Blocks
Toolkits are pre-packaged, reusable workflows or utilities that come pre-installed with the software. Toolkit blocks are categorized by their specific applications in the last five tabs of the modeling ribbon: Additive Manufacturing, Architected Materials, Design Analysis, Lightweighting, and Topology Optimization.

Custom Blocks
If a workflow is packaged into a block by the user, we call it a Custom Block. Custom Blocks can be created by setting up the Notebook in a specific format. To accomplish this, define the important parameters as inputs and the desired outcome as the output.
Custom Blocks are sharable, and we recommend saving them with a name that begins with CB, the acronym for Custom Block. Once you add them to your My Blocks Folder, they can be found by typing the custom block’s name or CB into the search bar.
To learn how to create and make changes to Custom Blocks, check out our 230: Intro to Automation course.
