Video tutorial:
How To Spawn Flames
And text tutorial if someone finds it easier to follow:
1. Open Simple Native Trainer and go to Object Spawning
2. Open Spawn Object by entering model hash or model number
3. Type in: 4079608389, a flame should spawn into front of you
4. Now you can move the flame using the Move Last Spawned Object option in Trainer
5. If you want to clone the flame hit RCTRL + A (You can do this as many times as you want to)
6. Now you're done.