i just wanna show all the emails' receiver in the sorting bar of the folder i created.
but there is a only way i found to show that in the default folder "sent" as "TO"
all the folder i created only can show the sender "FROM" in the bar not "TO"

after I moved the mail from "SENT" to the folder i created, I don't know the created folder can't show the
but now i can't reverse the action of moving the sent email from "SENT" to "MY FOLDER"

so, how can i solve that, if i wanna see the receiver in the sorting bar after moving out the sent mail from "SENT"