Custom Animation In OpenOffice.org Impress

I was adding a Custom Animation effect in my OpenOffice.org Impress slides and I came across something which could be bug (or a poorly implemented feature) in the software.

First, here is a description of what I want:

1. From the current slide, I want to reach a new slide containing bullets simply by leaving the current one.
2. The first bullet item is displayed upon entry of the slide.
3. When I click the mouse, the first item is dimmed and the next one is displayed.
4. A second click of the mouse also dims the second item and displays the third item.
5. And so on, until I leave the slide for another.

No. 1 is implemented without a problem. I select the whole text box containing the bulleted items, add an effect, and choose "After previous" in the Start dropdown list under Effect Appear section. Details of the desired effect is then displayed in a list.

When I double-click on the effect detail, I can set No. 2 (under Text Animation) and, supposedly, Nos. 3-5 (under Effect). Why supposedly? Because if I do so, and click OK, my indicated settings under Effect are wiped out. They do not register.

So, I had to do it this way:

1. Set options for Text Animation.
2. Click OK.
3. Double-click on the effect detail again.
4. Set options for the Effect.
5. Click OK.

I have a feeling that something is wrong..