You can add dynamic attributes on an individual basis. For instance, after you become familiar with the attributes of a particle render type, you can selectively add only those you need without adding all the default attributes. By adding the fewest attributes necessary, you’ll prevent unnecessary processing and avoid cluttering the Attribute Editor.
For example, suppose you select the Points render type and want to adjust only the point size of the particles. You can add only the attribute that sets the point size, while not adding any others.
To selectively add a dynamic attribute to a nParticle object
The Add Attribute window is displayed.