save-message to ? and then sync the folder

[<trance202@xxxxxx>]

Hello 

how can I sync the mailbox after save a message to any folder like this:

macro s "<save-message>?"

the above works great, but after this save mutt should sync
automatically. Like this:

macro s "<save-message>?<sync-mailbox>"

but, this doesn't work, because mutt wait for any data from user and
take then ync-mailbox> as mailbox-destination, which is wrong. 

any tips?

Thank you.
Raphael