We currently face a problem in Analytics: we cannot view separate statistics for campaigns that differ only in their email subject. This makes it difficult for us to analyze the performance of each campaign individually. To address this, we would like to request the ability to filter Analytics data by email "Subject". Since filtering by subject is already available in the Activity section, implementing similar functionality in Analytics would provide a practical solution in cases where tags cannot be used. At the moment, we cannot pass tags or other parameters with our emails, as our setup only allows us to define the recipient, subject, and content. Because of this limitation, we are unable to categorize emails or view separate analytics for each campaign using tags.