Inserting SubPages, actions and more in place:
<-/SectionOne?> would insert it in place, and put an edit link after in
<-LongArticle? head=20> or <-:20:LongArticle?> would insert the first 20 lines and put a "read more" link
<-!action> would insert list of subpages, custom RecentChanges, and more:
<-$variable> would insert