This isn't a direct answer but in your case, I wonder if you shouldn't use
the master details controls that allows you to browse only a field of a  
bigger database?.

This isn't a direct answer but in your case, I wonder if you shouldn't use
the master details controls that allows you to browse only one  row of a big
table.

I'm assuming that there is a date involved in the call log.

You will need some date field indicating what is the oldest date to still show. If the user wants to hide old calls, the date field is populated, otherwise it is blank.

Then you would create a filter on your table based on your new date field:

filter: oldestDate 'is not blank' AND callDate 'is greater than or equal to' oldestDate

when the user wants to see all calls, just clear the oldestDate field.

You could just expose the oldestDate field to the user and allow them to choose the date that goes in there (you could prepopulate it with, say, 2 weeks back or something).

Hope this helps.

I'm designing a sales prospect form. I have added a repeating section
control for the "Call Log". The user will "insert a new call" to
document the telephone calls between the user and the prospective
client. My question today is: How do I set it up so the user can hide
old calls without actually deleting them if the call log gets too long?
Any help would be appreciated. Thanks!

Teri