I have a sub report I only want to print say 10 lines in the sub report and not all the data it retrieved

I created a running total field and count each record

Then on the detail line, I created a formula to test the running total field
If it is less than 10 I print the record information
else I want to print "say more records"

I then don't want anymore records printing

How do I get out of the detail line and subreport?