MicroStation supports a number of level key-ins to perform a number of functions such as:

• Set level name, number and description

• Modify level attributes

• Modify Elements on a level

• Purge levels

• Create levels

• Copy levels

• Renumber levels

• Report on levels

The format of these key-ins is very specific and incorporates a level-spec.  Please refer to the following documentation for details:

Level Key-in Format

When it comes to OpenCities Map, the following  Modify Level Attributes Key-ins might be useful:

LEVEL SET BYLEVEL COLOR [file:file-spec]  - Sets the bylevel color of all levels specified by [file:file-spec] level-spec to “color-spec”. The “color-spec” is the color index.

LEVEL SET BYLEVEL STYLE [file:file-spec] - Sets the bylevel style of all levels specified by [file:file-spec] level-spec to “style-spec”. The “style-spec” can be the style-number or a style-name.

LEVEL SET BYLEVEL WEIGHT [file:file-spec] level-spec -  Sets the bylevel color of all levels specified by [file:file-spec] level-spec to “weight-spec”. The “weight-spec” is the weight number.

LEVEL SET OVERRIDE COLOR [file:file-spec] - Sets the override color of all levels specified by [file:file-spec] level-spec ON or OFF or toggle ON to OFF or vice-versa or to “color-spec”. The “color-spec” is the color index.

LEVEL SET OVERRIDE STYLE [file:file-spec] - Sets the override style of all levels specified by [file:file-spec] level-spec ON or OFF or toggle ON to OFF or vice-versa or to “style-spec”. The “style-spec” can be the style-number or a style-name.

LEVEL SET OVERRIDE WEIGHT [file:file-spec] - Sets the override weight of all levels specified by [file:file-spec] level-spec ON or OFF or toggle ON to OFF or vice-versa or to “weight-spec”. The “weight-spec” is the weight number.

LEVEL SET BYLEVEL MATERIAL MATERIAL-SPEC [file:file-spec] - Sets the bylevel material of the levels specified in [file:file-spec] level-spec to “material-spec”.