If then... else if then...

The if <> else if <> then block is a c-block (also known as an e-block in this case) that runs the code in the if statement if the first boolean is true, and if not, it checks if the second boolean is true and if so runs the code in the else if. To get this block, one must add the "Control Expansion" extension.
==Workaround==
This block can be worked around by using an if <> then else block, and putting a "if block" inside of the else portion.
Category:C-Shape Blocks
Category:Control Blocks/Expansion