Kontakt Microtuner provides a generic Script designed to be used in any Kontakt Instrument with a spare script slot to add a Microtuner. 300+ Scales are included and Scala files can be converted using an online converter.
The script is provided as a preset which is added to the user Preset/Script folder and then available from the preset menu of each script slot. The Microtuner Patches need to be stored in the Kontakt Installation folder as this is the only folder that is accessible from both Library Instruments and non-library instruments for some reason. Unfortunately the pictures folder is not available from library instruments too and so the script must remain ugly.