Coloured fading circle

[GlasBeard]

So trying to do this, and perhaps looking in the wrong places, but where is:

1. Blend tool, shape: Conical asymmetric, Gradient: FG to transparent
   

I don't seem to have a tool called Blend, or a menu option...

Thanks, and apologies, very new to this, so still learning.

thanks

Edit, ok, so think I found this under the gradient tool, so can select Conical asymmetric, and FG to transparent, but my result essentially cuts the circle in half, colour at top and transparent at bottom.  Am I missing a step?