Canon Powershot A590

Canon PowerShot A590. How do I delete something on fire?
How do you focus on an object and do everything else in the blur of the image. I a Canon PowerShot A590. Thank you!
Most devices S & P are not well suited for the use of selective attention. The A590, however, you can shoot with the camera in aperture priority mode. If you shoot with the lens cameras wide, perhaps chance, but with a small sensor, the camera greater depth of field of a camera with a larger sensor .. as a digital SLR … 15 times greater
Canon PowerShot A590 Digital Camera