1. REDIRECT #REDIRECT(code) #REDIRECT(TT) option works in the beginning of the page ONLY. Redirects from page A to page B. Be careful, you may never be able to see the page A.
2. (' ') are for i, (' ' ') are for b, similar to HTML style.
3. External link http://www.avia.ru avia.ru, or avia.ru.
Within Wikipedia: Wikipedia:sandbox or WP:sandbox. (br and nbsp used for formatting).
4.
HEADING3
Level 1
edit(spaces needed). Applies only at the beginning of the line. No text on the line.
.
text text text text text text
text text text text text
text text text text