ZENOLOGY: How do I restore parameters to their default values? November 08, 2021 08:36 Updated Follow Windows: Hold down the [Ctrl] key and click the knob/slider whose parameter you want to reset to the default value. Mac: Hold down the [command] key and click the knob/slider whose parameter you want to reset to the default value. Related articles ZENOLOGY: What kind of CPU efficiency can I expect from ZENOLOGY? ZENOLOGY: Can I use ZENOLOGY as an editor for products that are equipped with a ZEN-Core sound engine? ZENOLOGY: Can a Sound Pack/Wave Expansion that was purchased on a different Roland Account be loaded? ZENOLOGY: Which plug-in formats are supported? ZENOLOGY: What is the difference between each version of ZENOLOGY?