Auto hyphenate text in AE 24.0

when i was learning about Text Document object in scripting, I found that there is an attribute called autoHyphenate in the object, when i read the info about this attribute it tells me this.

When I tried to search for this option in after effects' text layer's option, I couldn't find any thing.
also when I wrote this attribute for a text Layer, I didn't see any diffirence (even when the text is a box text !)
Is there something that i don't understand ?
Thank you for reading !