TIS 6 User's Manual TIS Editor TIS Parameters General Parameters in the "Formula Operator v04" General Parameters in the "Formula Operator v04" How to use Parameters in the Formula Operator Step 1In the Formula Operator introduce the Parameter by adding a new Parameter (icon on the bottom right) and selecting it from the list How to use Parameters in the Formula Operator Step 2AND by selecting "TIS Parameter" in the second column "Type" Then you can use it in the normal way. You see which data nodes use this Parameter also in the Parameter-list: Find empty strings in parameters Input Data