Do you know how to activate "Item based events".

Summary:

Hello,

I want to edit "Item","Quantity" and "Unit of Measure" in Manage Events menu in Contract.

I have searched and checked the following page,

->https://docs.oracle.com/cd/E75749_01/erp/2021_21b_ppm_wn/ppm/releases/21B/21B-ppm-wn.htm

*Sorry, this is Japanese site. I couldn't find English pages, please check image in this screenshot.

And, I tried to create new Events Type that allow item.

*Sorry, this is screen shot in Japanese session. I couldn't find "Manage Events Type" in English for some reason. If you have any ideas about it too, please give me informations.

But "Item based event" didn't active and I couldn't edit Item Based Event.