As I mentioned in an earlier post, all the Styles are based on the "normal" style, and MS Word forces all other styles to have the same paragraph direction. All you need to do is change the paragraph direction of the "Normal" style, and everything else changes along with it.
In the "format" menu, click "styles and formatting".
In the sidebar that pops up, right click on the style "Normal" and click "modify".
On the bottom left of the pop-up there is a button "format" which opens a menu to control all the various formatting options.
Change the right-to-left options in the paragraph box - it should not be greyed out.
In order to avoid having to do this to every document, you want to save this to a template.
If you are fine doing this in the default Word template, open a New document, and do the above. Locate your "Normal.dot" file, and overwrite it with the document you just created. ["Save as", and select file type *.DOT (template), not *.DOC (document) - save it as "normal.dot" in the same location as your current "normal.dot".]
If you want to keep the default template as is, (for your English files,) then save your file as a separate *.DOT file. To create a shortcut to open new documents based on this alternate template, follow the instructions
here.
Good luck!
