You can allow or disallow spacing and indentation in topic titles:
[HelpOptions] ; TitleSpace = Yes (help title para can have space above/below), ; or No TitleSpace=No ; TitleIndent = Yes (help title para can have left/right indents), ; or No TitleIndent=No
By default, DITA2Go recognizes a hard return as the end of a topic title. If any topic titles continue past the first hard return, you can prevent this behavior:
[HelpOptions] ; HelpLineBreak = Yes (default, end topic title at hard return) or No HelpLineBreak=No