why don't you just try? And I wouldn't say "made an interface" is overly verbose ;-). So in case you face a problem that can be solved only by developers you could ask on this mailing list. Otherwise we have the awesome https://ask.libreoffice.org/de/ 'first level support' page (in German, and many other languages).
thank you for your answer. This question was the first step. Of cause I have to test my software, but I know OpenOffice and LibreOffice has got the same base. If the interface is developed separated it may be very different. The OpenOffice interface is very complicated. So I would program this now if it's quite the same, if it's very different I would program it later.
Thank you for the Link! The german language may be very helpful to solve problems.