Macros simplify writing complicated expressions with repetitive sub-expressions. Consider for example, that several questions in the questionnaire are applicable to one group of persons, such as women of child-bearing age (let’s say 15-44 years old, exact numbers are of no particular importance here). Suppose the variable for age is age, and for gender is sex with values 1 corresponding to males, and 2 to females. Then the following macro can be defined:
 

$c=(age.InRange(15,44) && (sex==2)

It can be subsequently used in the enabling conditions for each question directed at the women of childbearing age simply as $c, which will be substituted with the content of the macro as defined above. Note that macro definitions may not refer to other macros. 

To create a macro

1. Click on the “$m” tab on the left hand menu.** 
   **
2. Click on the ADD NEW Macroslink.
   
3. Define the macro name, content, and (optionally) a description for the macro.
   
4. Click save. 
5. To refer to the macro created previously in a chosen section, sub-section, question, or roster, type “$” followed by the macro name in the enabling condition field. In this example, type “$c”.
   

To modify a syntax in a Macro

1. Click on the “$m” tab on the left hand menu.
2. Locate the macro and click on any field in the macro specification to make all the necessary revisions.