Adding files to existing archive

Apr 27, 2009 at 8:25 AM
I can't find a way to add new file to an existing archive. For example, I have archive, named "" with one file "FirstFile.txt" inside. And I want to add file named "SecondFile.txt" to the same archive. How to do that ? 
Apr 27, 2009 at 8:46 PM
You can't do it at the moment.