Is there a way to nest layers?

[healthNut]

For example:
Lets say I have a wheel shape on a wheel layer
The wheel shape is made up of spoke shapes a and b
The spoke shapes are on the wheel layer
Spoke shape a is on spokeA layer
Spoke shape b is on spokeB layer

The reasons for this nested structure are to:
-be able to toggle the whole wheel's visibility
-be able to toggle individual spoke's visibility

My experiment with this failed as spoke's visibility seem to use an OR approach to all it's layers:
Spoke A visibility = (spokeA layer Or wheel layer)