Text flip direction

You should be able to have smaller amounts of text in RTL (right to left) as long as the paragraph has "World Ready Paragraph composer" or "World Ready Line composer"

The answers from Peter and Willi are both accurate, assuming you have the right version of InDesign installed. However, you should note that you're looking not for a document-level setting, but a paragraph or character level setting. Here's where you can find the paragraph direction buttons:

If you don't see those buttons, you don't have the right version of InDesign installed.

1. Install the ME version upon your primary version. (No need to uninstall)
2. Create Hebrew Paragraph and Character styles. Text in cmplete Hebrew (Paragraph Style) or partual (Character Style) need to use a World Composer.
3. In the Styles is the direction and the font defined.

I don't use the ME version, but I believe there are two things you must do.

First, select the text and verify that the language assigned is indeed Hebrew and not someting else.

Second, turn on the World Ready paragraph composer.