Ulysses uses the concept of Groups for organizing Collections and Filters. You might want to check out our screen cast on that, which gives you the best coverage and overview: Screencast Archive

I would like to have descriptive titles for the documents representing the scenes, like "dark and stormy night and heroine alone in the woods meets stranger". However, I do not want this to be the heading for this text when exporting.

Well, you could either use the excerpt for this (check the notes pane, where you can switch to notes & excerpt, or you could just create a paragraph style, name it "descriptions" and put a descriptive paragraph at the top of every document. Upon export, you might then either format your "decriptions" or exclude them altogether.

That's what the semantic features are for. :)

Is there a way to make the group/collection name the heading (like "Chapter 1") and having the scenes within a chapter be seperated by # without a page break? I figured out the "#" but I am unsure how to specify where the page breaks should go and how to use the collection name as a title.

Collection names as titles are on our exporter-list at the very top.
Page breaks are possible between documents. The exporters should have a setting for tis.

As Ulysses is intended for fiction writing, is there any tutorial of how to produce decent word output, adhering to standard manuscript formatting for e.g. a novel? Like title page, word count, chapters, scenes?

Nah, we don't have a tutorial of that sort, thoug it's a great idea to produce one. :)

I really do like Ulysses for organizing the writing, breaking up the text in smaller parts, adding notes with pictures and using the "smart folders" and all that (much better than scrivener) and I am looking forward to the mobile version, but the lack of easy formatting of the output is hard to overcome, I am quite a nerd, but Latex and formatting tags is not my thing ;-).

Well, how can I put this? I think you'll need to overcome your idea of tags being "ubernerdy". If they are "not your thing", you'll obviously have a hard time with Ulysses, be it creating the structure or the output you desire. As a workaround, you can always create markers and set their format to common styles like bold and italics and have the exporters reflect that. Youll be missing out on a lot of possibilities, though...

So it would be good to have some easy example of how to do that.

We'll see if we can come up wth something like that quickly. Will post back.

The titles are visible all the time in the tabs and in the project browser. So I can see them ALL and pick the one I want to work on.
In constrast: I assume your suggestion requires double-clicking on each one of the documents (which typically would be 10-100) to make that description visible. Worse, after clicking and not finding one was looking for one would double-click another one and then forget which one was looked at before and so double-click it again (and again, depending on brain RAM capacity...)

If you're putting the descriptive titles in the excerpt, you can just click on a document in the browser and have the preview display the excerpt.
This will not work for open documents (tabs), of course.

Maybe I'm completely misunderstanding the problem, though. What you want is a) scenes with long titles (descriptive), which form the b) chapters which you want identified by collections. Correct? And you want then be able to export collections as chapters, while having the sceens seperated by page-breaks or whatever or not at all.