Within a sequence, the following characters have special meaning:
'%' toggles highlighting (underline + italic).
'$' toggles extra highlighting (underline + italic + bold).
'(' and ')' enclose comments.
'[' and ']' modify call intrepretation. For example,
[As Couples Swing Thru] & Roll ===> does an individual Roll.
[As Couples Swing Thru & Roll] ===> does an As Couples Roll.
[Run Wild 3/4] Reset ===> does a 3/4 Run Wild then a Reset.
Run Wild [3/4 Reset] ===> does a Run Wild then a 3/4 Reset.
An indendented line is considered part of the previous line.