Deletes the selected variable. If you select a variable that has children, the children are deleted as well. Equivalent to Edit > Delete.

Moves the selected variable up one position. If the selected variable cannot be moved up from its current position, this button is not available. (Try promoting or demoting it first.)

Moves the selected variable down one position. If the selected variable cannot be moved down from its current position, this button is not available. (Try promoting or demoting it first.)

Promotes the selected variable one position to the left. You use this button to move a variable out of a document or document list. If the variable cannot be shifted left from its current position, this button is not available.

Demotes the selected variable one position to the right. You use this button to make a variable a member of a document or document list. If the variable cannot be shifted right from its current position, this button is not available.

Displays a list of data types that you can use to create variables for the specification. To create a variable for the specification, select the appropriate data type from this list, and then give the new variable a name.