To send a text (SMS) message on Fiitfu, you must first have a Phone Number. Please be sure to see this article if you don't have a number: https://fiitfu.freshdesk.com/a/solutions/articles/9000189801
To send a text message on Fiitfu, you can do a few different things
1. Go to your contacts profile, and click on the SMS tab as shown here on this image.
2. Go to your Contacts Tab, and search for your list of contacts in Fiitfu. From here you can click on the SEND SMS button to send everyone on that list a message. (Please note, your contacts must have their number in the Mobile spot)
3. You can go to the SMS tab and click on Compose a Message.
Here is also a video to help walk you through this!