Using run-time properties in a form design, you can display certain types of information in the form at run time. The types of information you can display are the current page, page count, current date/time, viewer locale, viewer name, and viewer version.
You use the commands in the Insert menu to add run-time properties to a text object. Alternatively, you can use the Type list to add run-time properties to either a text field object or a numeric field object. LiveCycle Designer ES adds the run-time property to the selected object, along with a calculate script that generates the intended value and a default value based on the property.
Note:
When you add the current page run-time property to an object, do not apply the global binding option as well because LiveCycle Designer ES will apply the same page number on every page instead of unique values.
See also 

To insert run-time properties