Is it possible to put a merge field into a global text field?

On my "estimate" layout I have a scope field that copies a global field on a different layout. I would like info from other fields in the estimate record to be included into the global field via merge fields. Is this possible?

I'm not certain what you're asking, but your terminology is confusing. You can put merge fields into a text block so that they all merge together. But the only way to put one field's information into another is by using a script with Set Field et al, or by using a calculation field.

This thread shows how to do this with custom functions in FM7. If you don't have access to the developer version, you can substitute specific <<Merge Fields>> with real fields using Substitute().

ResultText (calculation, text result) = Substitute ( SourceText ; [ "<<Name>>" ; Name ] ; [ "<<Date>>"; Date ] )