I've just pushed an update that lets you create presets for Ambient Noise.
This means you can now create your own environment and save it as a preset, allowing you to quickly launch it whenever needed.
When you create a preset, it saves not only the selected sounds but also their volume levels at that moment. When you choose the preset later, those volume levels are automatically restored.
This feature was long overdue. I hope you'll find it helpful!
Until next time,
Amit