NING said they will integrate the super-useful but rarely-used Quick Add drop-down into the Activity Feed, so members can add content like photos or blog posts directly from the Main Page. But before that, you still can have these Quick Add links and make them useful.
Add more share links below the status box in main page. Looks like this:
1. Edit any text box in the main page. Add the HTML code into the text box for the links:
Right click to download the HTML code here: activity_share_links.html
You can modify it. Remember to paste it in the HTML Editor view. If you don't know which text box should be used. I suggest you pick one that only displayed in main page. The links won't display at the first time, it doesn't matter which text box you used. Because it only for main page. So pick one text box that only displayed in main page is better.
2. Go to the Custom Code, add this line for YUI 3 if you don't have yet:
<script src="http://yui.yahooapis.com/3.3.0/build/yui/yui-min.js" charset="utf-8"></script>
<script src="https://api.ning.com/files/............/ningActivityFeedShareLinks.js" charset="utf-8"></script>
Save and you get it!!