You need to work with a version with ME features added.
If you are a CC subscriber you can install ME versions addionanally without additional costs.
With the CS6 without CC you have to buy world tools plugins. I think it is less costly to upgrade to CC subsription.
I'm using in design cc 2017 but the Arabic and Hebrw features in design is not there.
I follow these step.
From the pop-up menu, choose Preferences. In the Preferences dialog box, click Apps, and then click the App Language pop-up menu.
From the App Language list, choose either the Arabic or Hebrew languages:
I have another mac. There is showing Arabic. Both mac are same model & same specification
What is the issue and how do I go over it?