The macro language supports the basic if-then-else pattern as follows:

If expression1 

code1 

ElsIf expression2 

code2 

... 

ElsIf expressionN 

codeN 

Else 

codeDefault

End 

The first expression that evaluates to true will have its corresponding code block executed.

NOTE: both the spelling ElsIf and ElseIf are allowed.