To import a Shader simply copy / Paste from shader toy and use Medias as Channels.
[Ctrl] + [Enter]
at any time in order to compile the shader.
Go check the Shader Toy website for awesome shaders: www.shadertoy.com
For the "simple" shaders, just copy-past the shader toy code into Smode Shader Editor
(here is a most beautiful "simple" example made by Leon):
For more complex shaders (with Image channels and Buffers), just import the Image Layer
into one of the channel with ALT+drag and drop.
For the buffers, you can replace one of the Smode iChannel by a shader toy generator which will act as a buffer:
Here are the main variables you can expose inside of a Shader Toy Layer :