If you have an engagement that you only wish to reply to and not forward to a new sequence (or you want to reply before you forward, for example to a “Contact me later” sequence), you can do the following.
Open the reply in the Engager, and click the “Reply” button above the content.*
In the next window, you can send a reply directly, similarly to the way you can do this in a normal email client. The conversation will be attached under your reply.
Now you can simply fill out your reply to the contact of the engagement.
You can also add CC email(s) in the field for this above the editor.
When you are ready to send the reply, click “Send”.
*If the engagement has a note of “Contact replied as [another contact email]” under the “CONTACT” column, you can add that person as a new contact by clicking the name/email of the contact that replied. This will open up the “New contact” window where you can fill in additional information and save to create the contact, then you will be prompted whether you want this new contact to “take over” as the contact for the engagement. If you click “Reply” after this, the reply will go the the person that replied instead of the original contact for the engagement.