Plug a node into two shaders

[kubabuk]

How can I plug one node (fg. checker board) into two shaders (I want to keep my scene clean and not to use too many nodes with same settings)
Can I do that in render tree? (where I can edit only one shaders)

How can I change the color of several selected shaders at one go - when I select all of them I can ony modify last selected shader...

thank you for any help.

[atyss]

You can't shaders accross different materials. Either share the entire material or create redundant shaders in materials, and link the parameters.

Cheers
Bernard