down accross print direction and column headings

[trograncic]

In my report I have one repeating frame with down accross print direction. Data from this group may, or may not, be printed in two columns per page. I want to display column heading for second column only if there are records printed. I dont want to use any hardcoded number of records per page as a criteria in the format trigger (if possible). For example:
If my data is displayed only in one column, report should look like:

COLUMN HEADING
data...
data....
data...

If the data are displayed in two columns I want column heading to be displayed for second column too:

COLUMN HEADING COLUMN HEADING
data ... data...
data...
data...

We are using Reports 6i.
Thanks in advance for any idea. Selma