On occasion, I have to edit multilingual documents in InDesign, containing both English and Arabic. My system locale is English. I've got Indesign set up to display the Arabic text correctly, but this has one infuriating side effect: when I place the cursor in an Arabic paragraph and I use the left/right arrow keys to move the cursor, their behavior is mirrored. When I press left-arrow the cursor moves to the right. Right-arrow moves the cursor to the left.
This gets worse when you have English words in an Arabic paragraph: inside the English word the cursor behaves normally, at the boundary English-Arabic cursor behavior swaps. This makes it nearly impossible to select a word. Mouse behavior is similarly erratic: when I drag over a word to select it, it will leave out the first or the last character.
Is there a way to end this insanity and make the cursor behave normally?