Here’s another small function that i missed from my experience with Lightwave, it’s a script that allows you to shift the Hue, Saturation and Values of all color keys on the selected ramp node.
It has it’s own interface and i had to rewrite the RGB to HSV and the HSV to RGB code as the standard rgb_to_hsv and hsv_to_rgb functions clamp values to 0.0 and 1.0, which is a royal pain when your ramps are float and exceed 1.0 as value.

download : hos_rampColorShift_v1.0.zip