Aspose::Words::LowCode::MailMergeOptions::set_MergeWholeDocument method. Sets a value indicating whether fields in whole document are updated while executing of a mail merge with regions in C++....Aspose::Words::LowCode::MailMergeOptions::set_MergeWholeDocument method. Sets a value indicating whether fields in whole document are updated while executing of a mail merge with regions in C++.