Noise Tools

Hi!
Often I want to bring a bit of randomness to my meshes by offsetting the vertices a little bit in arbitrary directions. Usually that's a lot of vertices and in Maya I had a script for that, where I could check which axes should be included and set the amount of offset. I believe the amount were a min and a max value inbetween which a random amount was chosen for each vertex. I couldn't find an equivalent in NVil.
So I wish for a tool that does that, please. I think it would fit nicely into the tweak tool with support for a brush and the ability to apply the operation to the selection. Additionally a brush as a streamline tool, which would use the values from the tweak tool, would be appreciated. It's kind of the opposite of the Brush_Relax tool.
Thanks!