For the Color Ramp that is missing in Poser you can go over to ShareGC dot com and look for the following  /v/96818/view/11/Poser/Poser-P11-Cycles-3-Color-Color-Ramp.  That has a shader made for Poser 11 up that will give you a 3 input color ramp.  Need more than 3 inputs then daisy chain them together.  The output of 1 into the input of the other one and then you will have 5 inputs.  The reason Poser does not have a color ramp like Blender is that Poser cannot handle variable number of inputs on a node. 

  

Above is a daisy chained Color Ramp.  You plug the Blue One (since that is the color showing) into the lowest color input on the Green One.  The reason to do that is the Input Factor of the Color Ramp is a value between 0 and 1.  So, for the input values of the Green One I have 0 to .3 Low .3 to .8 Mid and .8 to 1 for High. for the Blue One the values are 0 .1 and .2.  Now when the input value (coming from the MathFunctions Node) is between 0 and <.3 then the Green Node will show what is on the lowest color input in this case the color output of the Blue Node.  And when the input value is between 0 and <.1 then you get Red, between .1 and <.2 White and >=.2 Blue. And when the value goes above .3 the Green Node then selects either Mid or High and the Output of the Blue Node is unimportant since it no longer is being used.  And in this manner you can have a Blender Style Color Ramp so all those shaders that require a color ramp you can now do.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13