If you like to mark/clear the "To Be Recycled" marker on all the currently displayed referrals instead of doing so one by one, you can do so following the steps below.
1. Press on the To Be Recycled(having Blue sign) button under Mass Action section or press CTRL+SHIFT+R keys on your keyboard
2. Select No to clear, or Yes, mark as to be recycled
3. Press Update button
After this, all the currently displayed referrals will have the "To Be Recycled" marker marked/cleared based on your choice.
IMPORTANT! This action will be applied on all the currently displayed referrals. To control which referrals to be displayed, you should consider applying filter first.