I don‘t have experience about RTL.
Your 2nd question I've met in my app.
I have tried some methods, do not know which is correct.
I think the ultimate way is http://www.tersus.com/#Id=326 "Defining application UI by importing an HTML template". That's a little complicated for me, but indeed beautiful!
And my personal practice for you:
First I suggest you look at http://www.tersus.com/#Id=4785 , the element has alignRight, alignCenter or alignLeft html.cellStyleClass property and I think html.styleClass is also work.
Then I think you could right-click your "Radio Button Group" and choose "Encapsulate".
It will make your several elements in one pane and display together, moreover your same enlemet reused here flow link keep well. (link into pane automatic)
I suggest that you plan before designing a form chunk of position
Elements can be moved to other elements of the same level and keep connected, but I did not find any way you can move back to the parent element keeping connected.
I'm just a novice, my method may not be correct or recommended.
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