Start block: The first block found in every Flow and the only one that can't be deleted. Application forms and webhooks send their information through this block.
Send Request block: One of the many types of other blocks that can be used in a Flow. The list of blocks is here.
Group: Enables organization, documentation, and building of Flows since groups can be duplicated. More information on organizing a Flow can be found here.
Minimap: Enables easier navigation of larger Flows.
Add annotation: Adds a text annotation.
Run: Runs the Flow.
Toolbar: Contains the Redo/Undo, Zoom, and Fit view buttons.
Text annotation: One of the ways to document a Flow for other users or explain complex tasks being performed.
Console: This is where you can find all API activity. This is useful for debugging Flows and ensuring your Flow is running with the expected information. A guide on troubleshooting Flows can be found here.
Webhook: Create a Flow that either runs automatically on a schedule, or whenever a specified event happens. More information on webhooks and automatic runs can be found here.