Is is possible to add free text in an email built in Content Builder?

#Content Builder #Email Marketing #AMPscript #Customization #Email  I have built an email in Content Builder within SFMC and I'm using AMPscript to populate a simply customized salutation using a person's name from a DE (in this case, the person is a doctor). The email will also have copy text and images in its body and a customised sign-off at the bottom where information will be pulled and populated depending on what doctor will be receiving the email. For example, each doctor has a Sales Rep assigned in a DE, the sign-off will be populated with the Sales Rep's details depending on what Doctor is the recipient of the email.  This email won't be scheduled to be triggered from Journey Builder (at a specific date/time) but it will be triggered by a Sales Rep (I guess from their iPad).  Is there a way to include a "free text" at the beginning of the email body so the Sales Rep triggering the email will be able to write their preferred copy?  If so, how is it done?  Thank you for helping this junior dev :) @* Marketing Cloud Engagement *