What are Attributes

Attributes are the different functions in a fixture.

It might just be a dimmer that uses 1 DMX channel, but can be something more complex like the Pan function that often use 2 DMX channels. In the grandMA2 it is just 1 Attribute no matter if it uses 1, 2 or 3 DMX channels.

Attributes are organized in the grandMA2 into a structure. The top level of this structure are called Preset Type - This could be something like "Gobo". In the Preset types there's a new level called Feature - a Feature could be something like "Gobo Wheel 1". In Features we find the Attributes -  this is the specific function where you can select what gobo the fixture should project. There's also something below an Attribute called Subattributes - this could be a function of the gobo wheel, like half of the DMX range is select a gobo and the other half is continues wheel rotation.

The grandMA2 have a lot of predefined attributes. You can make your own and you can edit the ones that are there.

For more details about all this please have a look at What are attributes, features & preset types under the Basic Fixture types topic.