Help System (web edition)

CHANGE XY   (X and Y line labels)
exchanges two chapters in the edit field. The first chapter starts
from the first line labelled with X and ends on the next X line.
The second chapter is defined by the Y lines in a similar way.

CHANGE L1,L2,K
where K is label of an image line of the form "   XXXX   YYYYYYYY   "
interchages the XXXX and YYYY columns on the lines L1-L2.