Can you please change the layout of the Keep Options Dialog Box so that it is clearer for end users? Attached you find a proposal from my part.
The differences are:
• More space between "Keep with Previous" and "Keep with Next" + added a line in between them.

• Keep with Previous and Keep with Next. In the original it seems like you have to check the first (Keep with Previous) and to use the second (Keep with Next).

• Indetation of the radio buttons under "Keep Lines Together" so that it is obvious that they are both part of the checkmark "Keep Lines Together"