By default all properties in HTML Editor's Popup Windows
(Table properties, Image properties etc.) are enabled. Sometimes it is necessary to
prohibit some properties direct changing by user. For Example, you want user to select an image
in Image properties Popup using Browse button only.
In this case you should prohibit Image URL field use.
Every property (input field, check box etc.) in all Popups can be disabled.
For this purpose the following OboutInc.Editor.Editor inner properties are used.
See also Popup properties disabling.