you're thinking that you could flag a specific contact and have all conversations messages go to a hidden folder.


OR

you're thinking you could mark each txt message as "hidden" and then view them by clicking an unmarked set of keys, like shift-ctrl-h in the conversations window to unhide all "hidden" sms.


maybe the first one has a work around, set up an SIP account with txt, and have the hidden person or persons txt you there. You could receive at your convenience by connecting to SIP, or head to the web interface.

The other solution may be interesting in brainstorm.