Using Multiply is simple enough that it just takes a few clicks (and perhaps a keystroke or two, to set a title) to post and share content with the people you know. That's enough to keep most of us happy.
And then there are those who'd like more fine-grained control over certain aspects of Multiply. For them, we have the
Advanced Posting option. This isn't a new option, but rather, is one that is sometimes overlooked.
Enable this once and you'll have access to the following options for your Multiply account...

- Post without notifying people on the message board.
- Prevent people from replying to your posts.
- Prevent people from seeing your hi-res original photos and ordering prints from your albums.
- Allow any combination of people from your Network, Contacts and Individuals to see your posts.
- Specify the date of blog entries
- Bonus! Enable or disable our cross-posting feature! (Note that to enable cross-posting for the first time, you'll need to set up a content import in the usual way... Post -> pick the content type -> "Add [type] from")
Source:
http://multiply.multiply.com/journal/item/141/More_control_with_Advanced_Posting