other versions click the following links
To begin, click the layer icon if the layer panel isn’t already open. In the layer panel clicking the +
icon will bring up the option to create a new layer.
Select 8bit Layer from the menu.
With that layer selected go to the Effect menu by clicking on the i icon in the layer panel.
There you can switch Halftone on and select the type of halftone you’d like to use.
Now you’re all set. Have fun!