Groupwise 8 Linux client singature and images

I need to be able to attach a image into my signature in the Grouwpise client. Does the Linux client offer this functionality? Doesn’t seem to be able to and this is really simple stuff for a email client! All I can add is text! It can be done in the Windows version and I can only assume that its been left out? I noticed a topic back from 2010 saying it didn’t support it but was hoping by now they would have added it in.

Anyone got anyway around this if its not supported? Any help would be great.