Originally Posted by Pushka

You can force the order of the collections to be the way you want, by using symbols before the collection name. eg, the collection I want first I use **(collection), then *(collection), then you can use others like # { etc. To get them in the right order, you then sort by Title, and all the names with a symbol will be on the first few pages. After that, all the titles follow but you can ignore those.

I dont have a k3 yet, but I read that some of these symbols dont work so you might need to experiment a little.