Examples
1. Output a page number, right justified on the right margin.
.right
.print 'Page ', page_number('zn')
2. Output a heading for column "bal," right justified to the right edge of the column.
.position bal (20)
.format bal('+++,+++.nn')
.right bal .print 'Balance'
...
.detail
...
.tab bal .print bal ...
...