Links unite the blocks in order to build programs.
To create a link, click on a block port or flow gate, then click on another block's respective block or flow gate.
To delete a link, right-click on a block port or flow gate and click the delete prompt. The link will disappear, and the blocks will no longer be connected in the program.
To delete a link that is initiated but not connected, push Esc on your keyboard, and the link will be deleted.