If - Else

If using for branching statements in RVL.

Basic branch statement has 2 parts: 1^st row is If flow with Condition:

If

Flow	Type	...	Action	ParamName	...
If	Param			param1
	Condition		condition statement
	Param			param2
	some	actions	go	here
End

Actions after If condition and up to End statement are executed when condition is truth.

If-Else

If-Else statement is similar to If with one extension. It contains an alternative Else section that is executed when If condition is false:

Flow	Type	...	Action	ParamName	...
If	Param			param1
	Condition		condition statement
	Param			param2
	some	actions	go	here
Else
	other	actions	go	here
End

If-ElseIf

ElseIf is a way to establish a chain of conditions. Each condition is evaluated with previous is false.

If-Else statement is similar to If with one extension. It contains an alternative Else section that is executed when If condition is false:

Flow	Type	...	Action	ParamName	...
If	Param			param1
	Condition		condition statement
	Param			param2
	some	actions	go	here
ElseIf	Param			param1
	Condition		condition statement
	Param			param2
	other	actions	go	here
End

There may be many ElseIf` blocks:

Flow	Type	...	Action	ParamName	...
If	Param			param1
	Condition		condition statement
	Param			param2
	some	actions	go	here
ElseIf	Param			param1
	Condition		condition statement
	Param			param2
	other	actions	go	here
ElseIf	Param			param1
	Condition		condition statement
	Param			param2
	other	actions	go	here
End

And there might also be an Else block in the end:

Flow	Type	...	Action	ParamName	...
If	Param			param1
	Condition		condition statement
	Param			param2
	some	actions	go	here
ElseIf	Param			param1
	Condition		condition statement
	Param			param2
	other	actions	go	here
ElseIf	Param			param1
	Condition		condition statement
	Param			param2
	other	actions	go	here
Else
	other	actions	go	here
End

Examples

Check if Log In link available. If so, do login:

Check if we use old version of OS and assign a variable OldWindows accordingly: