For some time now Real Studio uses WebKit on Linux for the HTMLViewer control. Our plugin now gets a few new classes in 12.4 release to use more webkit features. So with the new LinuxWebViewMBS class and the new LinuxWebFrameMBS class you can control more things than before. Like GoBack or GoForward or setting a proxy URL.
In the next months we can add more. But first we await your feedback. Because we have no idea how many people use this feature of Real Studio beside the developers who asked for this classes.
New 12.4pr3 plugins will be available soon, so you can test this.