Using the «Rule()» command the template author can make sure that data values entered by the user in the interview for a template are syntactically correct and to some extent that they are consistent with each other.
XpressDox Help Center
Use Google To Find Help Fast, e.g. xpressdox choosefromlist
Press Getting Started in the XpressDox toolbar for basic template development
Watch the tutorial videos
View command help from list of commands
Press F1 for help on a command in the Command Editor
Email support@xpressdox.com for assistance