[Solved]How to create feature under og feature Tab.

HI Guys:

I am create some feature via feature module. In my case, i have some group, just like group wiki,group news, group blog. And i create a feature following some user guide which from internet. 

My step:
1. Going to structure/feature
2. create a feature with group news
3. save and download

Question:
After i enable feature under feature page and open my group feature tab, i don't see group news feature. So,How to let the feature under OG feature tab?

Many thanks.

Just like the attachment screenshot

solution:
http://solutions-architecture.com/wiki/how-add-new-toggable-custom-featu...