# login to the adm. console
# go to the {nav Configuration > E-Commerce > General} section
# choose some new value for "Select Module Root Section" variable
# press "Save" button in the toolbar, confirm that chosen new value for "Select Module Root Section" displays after page refresh
# go to the {nav Configuration > E-Commerce > Output} section
# go to the {nav Configuration > E-Commerce > General} section, confirm that chosen new value for "Select Module Root Section" displays after page refresh