For each Style you are using, select Format: Styleand click the Modify button. In the Modify Style dialog box, select Format: Paragraph. Next, in the Spacing section, change the After box to 12 (or whatever spacing you want). This will eliminate the need to press the Enter key more than once between paragraphs, and will make the work of the Braille producer much easier.
This is the button to click (Or press Ctrl + *) to show you where all the extra line-breaks are. You only need one at the end of each paragraph; if you can see a column of them like this, your styles need a little work!