FrameMaker provides advanced support for editing and publishing Asian languages. The Layout Engine can be specified at the paragraph level by specifying the Asian paragraph composer.
Whenever you select a font that has double byte encoding or is a CJK language font in paragraph designer (for Chinese, Japanese, Korean), you need to check the Use Asian Composer option in the Paragraph Designer.
When a legacy document is opened, for all paragraphs containing double byte font or Rubi text this property is switched on so that the Asian layout engine will be used for those paragraphs.
Since the two layout engines have different capabilities, scenarios may arise wherein neither engine can handle the text correctly. For example, if a paragraph contains both Rubi and Arabic text, neither engine can handle both of these correctly.
You can also choose to not show this alert and instruct FrameMaker to automatically switch to Asian language support.
Choose to open the Preferences dialog.
Go to the tab.
Activate the Automatically Switch to Asian Composer checkbox.