Ok, so I' ve done it with Masai editor now (it has a different name now tho' ).
This however creates quite some additional entries and I feel like this isn' t entirely correct (probably due to the way I did it). In the forticlient unattended install document they say there are a couple of registry entries that should be used to add additional entries. However, I don' t know/see how to add them there. I just used the import function on the IQ/registry view.
The transform doesn' t appear to work either. It contains the registry entries, but after the installation I can' t find them. Will use GPO to add them for now, but it would be nice if someone could explain this a little more. Probably is my lack of knowledge on MSI files. Or if anyone has such a transform, if they could supply me with it I' d be very happy, as then I have something to look at :D.
The file attached is a zip btw, the forums won' t allow that :\ so you have to rename it. It contains 4 transforms (I omitted our license transform for obvious reasons :)) In case anyone wants to use them, the Firewall, WebFilter and VPN transforms should be safe to use on any version if I can believe the docs :).