DCR Portal 7.2.1 introduce the expression wizard which hopefully will make it easier to write expression in guards, computations and value rules.
Click on the icon on the guard or expression
This will open the expression wizard which is outlined below:
Here the user have written "date" and on the right the possible functions are displayed. Once a valid expression have been written the result is displayed:
The expression builder use the friendly enough expression language and all functions found in the current DCR Process Engine.