How can I insert "Number of Pages"-field that only counts pages from 2...LastPage? In other words, NUMPAGES-field should neglect the 1st page of the document.

In my template-document there are "user interface" on the 1st page, that contains several Text Field Forms. The values inserted to the Forms are copied to the actual document that begins at page 2.

I can not use SECTIONPAGE-field, because the actual document contains several sections.

For example, is it possible to add formula: =NUMPAGES-1? Or do I need to use macros? Or is there some simple solution that I just can't see?