The Style dimension, normally LS=, can be used to change the line style that a feature uses. It should be assigned to the first point of the line feature and is the name of the line style. This can be used where you are surveying road markings and wish to use one code but select the type of road markings from a list on your survey instrument or logger.
The Colour dimension, normally LC=, can be used to change the colour that a line feature uses. It should be assigned to the first point of the line feature and is an integer value which maps to the list of colours in the n4ce defaults.