here's some Tools I cannot live without:
Convert Instrument Number 3 different ways/shortcuts you can assign to convert current pattern/track/selection to current selected instrument ... basically thé savior for easy doubling etc...
Easy Tune Automatically transpose/finetune a sample to C.
Randomize Notes Extremely handy tool to get some quick inspiration on where you want a tune to go. There's some scales you can pick from, you can create your own scale or shuffle between a bunch of selected notes in the pattern editor. Select your entire track pattern and select shuffle/chaos for ultimate crazy. You have shortcuts as well.
Fractional Notes Perfect for triplets and other eh fractional note stuff.
Place Selected Notes Evenly Very descriptive name. :)
dBatchProcess This thing seems currently offline.. It's basically an interface to Sox. Quick and easy batchprocessing on samples, such as normalizing, fades, etc.
CDP Interface The incredibly expansive library of CDP sample fuckery right inside Renoise. Needs some setting up, but pretty straightforward. Get ready to lose hours crushing/stretching/flipping samples over and over... 😄
ExportAllSamples Export all the samples within multiple instruments.. Very useful if you want to maintain all the samples you make within your tracks.. Which in Renoise can ramp up pretty quickly.