Hi,
I developed a C# plugin called Invisible Lists. It allows you to create different groups of contacts (different from the ones you have in your contact's list) and to block/unblock them. It can be useful when you're at work for example.
This is an alpha version which means that it may have some bugs
![:P](images/smilies/msn_tongue.gif)
To install just run the exe file in the attachment. The plugin has an help section accessible through the Plus!>Preferences>Plugins>InvisibleLists>Configure... (that's also where you configure your groups and other options).
Since this is a C# plugin, if you have another C# plugin installed in plus then you'll only be able to see one of the plugins in Plus! plugins' section.
Any comment/suggestion/bug, just post here or write me an email.
Update: Sorry, the plugin had some annoying debug messages (all removed). Thanks to J-Thread for letting me know.
Enjoy,
Ricardo Sabino.