Hello Dennis,
a) Please try to re-save the options. Perhaps that will help. We are currently working on a new version of plugin which uses a new code for this part.
b) You are right, the options for image alignment are all there.
c) You need to do a right mouse click on the image to insert it. On Mac, you need to do Ctrl + Left click. All of this is in the our Foliopress WYSIWYG user guide.
d) You can change the editor size in Settings -> Writing. The issue with full screen is another bug which is addressed in our new version which will be out in few weeks. You can disable the admin bar in your user profile to have a quick workaround.
Thanks,
Martin
