In order to create the preference pages, please follow the below mentioned steps:
a. Hover the cursor on "Contacts".
b. Click on "Preference Management".
c. Again hover the mouse on "Contacts" and click "New preference page".
d. Here you can create your preferences. You can give a name to the preference page and from the "Page type" drop down select the page you want to customize. In case, you want to customise all the pages then you have to create an individual page for each option.
e. Click on "Save".
Once you save it, the page is ready to be used in the footer. You can select the page in the custom footer and then use it in the campaigns.