Group Text+ includes a share extension that you can use to quickly send interesting things to your contacts.

First, you must enable it:

1. Open an app that has a Share button, like Safari
2. Tap the Share button
3. Tap the "More" button. (You may have to scroll to the right to see it.)
   
   
   
4. Find Group Text+ in the table and tap the slider to enable it.
   

 

Now, any time you want to quickly share information or a file with your contacts:

1. Tap the Share button  (or use Open in...) in any app
2. Tap Group Text+
3. Tap the contacts and/or groups you want to share with
4. Tap Compose
5. Add any text you'd like, or go ahead and tap Send!