How to install Indesign Arabic but keep English (US) settings and preferences?

Hi.

I'm located in the United States. Approximately 80% of the work I do is in English. However a good portion of my work involves documents in other languages, including Japanese, Arabic and Hebrew.

So I do need support for those languages and also right-to-left formatting.

I work with both Mac and Windows machines.

On my Windows PC I recently had to reinstall everything, but I can't get Indesign to work like it did before. And I'm not sure if I'm not remembering how to set it up, or if Adobe changed something.

Let's take Arabic for example. 

If I choose English/Arabic in my Adobe CC app preferences and then install Indesign, then Indesign installs with everything set up for work with Arabic documents, but it assumes that I'll be working only with Arabic. In other words, the default paragraph style is set to right-to-left and the default font is Adobe Arabic.

Previously, and the way it is currently set up on my Mac, I have Arabic text support, I have the right-to-left features, if I need them, but the default settings are set up for English.

I seem to recall some weird way of doing this where you install Indesign English (US), then uninstall it but keep preferences, then change the Adobe CC app preferences to English/Arabic, and then re-install Indesign somehow so it installs with English/Arabic features, but keeps the English (US) preferences from the previous installation.

Does that make sense?

I tried that now, but when I install Indesign with Adobe CC app preferences set to English/Arabic, it seems to override the English (US) preferences I had left behind.

Is anyone familiar with this, or know how to get to what I'm looking for?

Any help much appreciated!

Thanks 🙂