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1995-07-10
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3.4.2 ECHO LAYER
The ECHO LAYER command is used to select which layers should be displayed.
Whatever the selection of layers are chosen for display, the active layer
will always remain displayed.
MODIFIERS
LAYER This modifier is followed by a range or list of layer numbers
in the range 0 to 255. The specified layers will be displayed,
those left out will not be displayed.
Example:
#ECHO LAYER LAYER 0-2,5-70 [CR]
will display layers 0, 1, 2 and all layers between 5 and 70.
INCLUDING Requires a range of layers that will be displayed as well as
the current set of layers displayed.
EXCLUDING Requires a range of layers that will be excluded from the
current set of layers displayed.
COLOUR Requires a list of colour numbers in the range 0 to 7. All
layers that have these colours assigned to them will be
displayed.
Example:
#ECHO LAYER COLOUR 1,4
will display any layer that has the colour assignment 1 or 4.
NAME Requires the name of a layer list defined using the DEFINE
LAYER command. Only the layers in the named layer list will be
displayed.
ALL Will display all layers.
NONE Will only display the current active layer.