Thank you very much! Good to know all these options. As widowcontrol is enabled by default with html (I can confirm this by checking in Word) I do not need to change anything regarding this setting.
However, it's not really working. I have an example where a sentence (two lines long) is broken into line 1 on page one (bottom) and line 2 on page 2 (top).
I am aware, that further support is bound to the license. I am still waiting for the department to decide which license and hopefully I can buy shortly - alway bad waiting :D
Have a great day!