Source field options from the Model info (thought I took care of that already).
Sanitized tab handling. Annotations tab is now automatically added. Need to do the same for Properties.
Removed explicit tabs for all non-special editors. Everybody now inherits from GenericEditor, except if the editor has a diagram.
Added support for creating and editing properties. Currently only through the form. (Might be nice to edit them through the hierarchy diagram as well).
New version (includes support for creating and editing properties).