Hey Martijn and cssabc123, First post here. I've been with ProcessWire for exactly two days now. I'm coming from an ExpressionEngine, concrete5 and MVC (CakePHP mostly) background. Just checking if I understand you correctly, Martijn. To enter all the planets, one might create pages in the Tree with a template "planet", which would constitue one's dataset (or container) of planet data. Then, on any given page, you could for instance create a listing or a dropdown via $pages->find("template='planet', sort=title"). (That would remind me most of ExpressionEngine, where the data you enter into a channel can be output anywhere you like with {exp:channel:entries channel="planets"}) So in this case, the planet pages would not really constitute pages as such (although they might), but a set of data. Rows in a database, if you will. Just wrapping my head around stuff. Bye... Nico