Ok now let me go take a look at them on the users side one side
ow_plugins/newsfeed/views/components/feed_item.html
on about line 61
let me look at the other code for where we may want to add it now and see what we can do, i dont know if this can be done in a plugin or not, we may have to edit the core.
But its linked to js in ow_static/plugins/base/js/ow.js
so i cant do it dear sorry i would not know what i was doing with the js end of it and we would prob end up with a big mess on our hands.
look at lines 311 and 432
the visiblity variable or number is what you want to change, you can hard code it or you can find just above that where visibility value is set in a php ternary statment if you know what that is, its on line 291
and then on 432 just change the value..
Now i dont know which one does what, i dont know if you need to change both or just one, but here is what the values mean
// 1 VISIBILITY_SITE
// 4 VISIBILITY_AUTHOR
// 8 VISIBILITY_FEED
// 15 VISIBILITY_ALL
so you prob just want the feed so that means that the bottom one might be ok since it is 8 already.
But change one value and try it and see if its one you want.
Hope that helps
http://www.abeautifulsite.net/how-to-use-the-php-ternary-operator/