2. CKG Editor is also very nice. However if you switch back and forth between DW Edit and CKG Edit you'll find that the spacing and separate lines you've created in DW Edit will change after going through CKG Edit. You will find two lines have been joined together with a \\ between, particularly if you have not left a blank line between. Sometimes this is infuriating because you just spent a lot of time creating the separate lines.
There is no such thing in Dokuwiki as 'separate' line spacing or intra-line spacing. If you want to force a line-break within a paragraph then you use the double backslash, othherwsie the line-break is ignored by the HTML, even if it remains in the text file. Similarly, if you add mutiple spaces within a line, the spaces remain in the Dokuwiki text file, but when output in the browser these extra spaces are ignored by the HTML, and since all text in ckgedit is run through HTML, it doesn 't recognize the extra spaces and elides them. I don't know what you are attempting to do, but it sounds to me as though ckgedit is behaving normally.