WHAT ARE  PP pages  -

PP stands for Permanent Pages -  These pages cannot be renamed - as they are being referred to from Subwebs - and when they are renamed , the links to the subwebs break 

So for now - these pages CANNOT be named as they are linked to every template in the entire web _ & subwebs

In future webs these pages are called DNR  Pages - ( as in Do Not Rename)  which seemed just a little nicer than PP pages. 

IP stands for "Include Page"  - this is where you modify the pages that apply to the template