No I don't know much about ScriptControl. I'm not sure what you're trying to do, are you trying to create some elaborate webpage handling for users who use your website/program? It seems awfully complicated. By instinct, I can't really see how Selenium could be a solution for this. For scrolling you could send Down or PgDn, or possibly WheelDown (but the cursor must be over the window).
I guess in the end everything I did in AutoHotkey was to clean up the mess left by programmers, and to get my software working in a halfway-decent manner. Nowadays I don't really blame programmers, I think that everybody in every industry, in every sphere of life, is a bit foolish or misguided and ends up doing things that create inefficiency or bureaucracy, that are counterproductive to their own aims, or that even end up ruining people's lives. People create and do mediocre things in a mediocre way. The solution is to give ordinary people a choice of standard off-the-shelf products, plus the tools and knowledge to fix some those products, and to fix some of the problems in their everyday lives.
So ultimately Microsoft-bashing, which I'm not saying you're doing but which I see sometimes, is essentially reality-bashing or real-life-bashing.
I don't know if some dark motive like greed explains exactly how the Ribbon was created, whatever caused it, it could be the worst decision in computer history. This is the scariest horror movie I have seen in my life. It's the classic example of 'the road to hell is paved with good intentions'.
The Story of the Ribbon | MIX08 | Channel 9
https://channel9.msdn.com/Events/MIX/MIX08/UX09
What they should have done is just create an intro video for key features, so that users would have an idea of the range of features that MS Office had, and further videos for features in different categories, e.g. one video for each of the old menu bar items; and improve the help search by having a list of keywords for each help page article. Some people say 'I like the Ribbon because I like the Quick Access Toolbar', well I like the Quick Access Toolbar, the two things are separate things.
[EDIT:] If I think over the main 3 PC OSes, and the main 2 mobile OSes, the companies/organisations behind those have all made major mistakes in recent decades.
The worst thing about the Ribbon ultimately though, is not the Ribbon, it is that there should be an MS Office classic mode. Silly basic customisation things, like in MS Paint you should be able to specify what colours appear in the default palette. I can edit them live in MS Paint (Windows XP) version, I might see out of interest where they're stored in the exe, if I can find them. I would love to hear from Microsoft people who thought that the Ribbon was the worst idea in history.
Ultimately is the Ribbon so bad? I guess it is, because I brought over the XP versions of WordPad and Paint. And I customised Excel 2007 using AutoHotkey to avoid using the Ribbon. Swings and roundabouts, I would use Excel 2003 if I had the CD handy (because no Ribbon), but then again, Excel 2007 has better support for xlsx and xlsm files. WordPad (XP version) had it right, standard menus and a toolbar, although personally I don't really use toolbars. One bad thing about the Ribbon is that you have to press alt+h instead of alt+f, which is awkward to do one-handed especially on certain laptops. Look how we've moved forwards with technology!
[EDIT:] Omg I just remembered that Windows 8 uses the Ribbon ... I dread upgrading. They (he) even said in the talk, not all programs are suitable for the Ribbon, and then it ended up in Paint, WordPad and Explorer. Like I said above, standard menus and a toolbar is all that's really wanted. If Microsoft want to spend millions on UI, they could get a team to look at MS Office 2003 and learn about great UI. Notepad (and I suppose Edge) ftw, no Ribbon. I dislike the Ribbon I suppose because it's impractical, results in more clicks, makes it harder to find things, and to see all menu items at a glance, especially for a new program, you can customise it to fix it (for some programs), but that's not ideal. When you press alt, and there's squares everywhere, instead of a list with underlines.
[EDIT:] Looking at MS Paint (Windows 7) and thinking about Excel 2007, why did they make all the colour palettes so ugly? The Windows XP and Excel 2003 colours were really nice. Also why isn't orange available as a highlight colour even in Word 2007, I wanted it to indicate shades together with red, and yellow, i.e. red remove (or don't include), yellow resolve, orange reconsider. Highlight colours are the one advantage of word processors over Notepad or WordPad. It's really sad looking at the MS Paint (Windows 7) Ribbon.
There are other links about that,