I really like the birth year switch feature. That is so cool.
I would like to see the template page categorized as
http://www.wikitree.com/wiki/Category:Dutch_Roots_Project
so that it will appear with it's clear instructions on the main project category for easy reference.
Also, is there a rule that a profile must have a PPP before the template is used? Or is that PPP optional? For instance, in New Netherland, we allow he use of {{New Netherland Settler}} template, even if there is not a PPP.
I am thinking that as a general guideline, the template should be free to use for any descendant after 1811.
But all pre-1700 profiles should wait for the PPP, since the PPP is proof that the profile has been researched and approved, with the proper LNAB.
The 1700 - 1811 area might be a little more flexible. But we should spell out some clear guidelines for when to use the template, and when to wait, on sub-project page.