Unity Material Instanced Properties Editor
A generic editor for manipulating instanced properties of materials in Unity.
It was created in Unity 2018.3.0 but it should work fine in older versions (unsure how far back). Please submit a report if you find any issues.
There is currently no way to tell between an instanced material property and a non-instanced material property on the C# side in Unity. This means that all properties are always included in this component. You must keep track yourself which properties are instanced in your shaders and only change those specific properties via this component. Changing non-instanced properties via this component yields undefined behaviour and can even cause performance issues if Unity decides to create new material instances behind the scenes.
This component also displays normally-hidden properties. Use caution when modifying these properties.
Some more advanced properties cannot be properly represented via this component due to limitations with accessing property info in the currently available Unity APIs.