Example: I need to add an extra field:
Description in chapter 3.42 - Adding fields

The views can be re-generated any time using the following command:
./view/create_views.py --pg_service pg_qgep --srid 2056

I need to know;

• Where to enter the command (PG admin SQL? QGIS python line? osgeo4W shell? Python shell? On the QGIS computer? On the postgres computer?)
• What to replace ( replace pg_qgpep with your database? replace view with the custon field?

This is an issue for me in the whole documentation.