Problem

Why does View Display require a saved setting, but changing global display does not.

Solution

Global Display is a Level attribute, which is a file setting (other
examples of a file similar to placing a line, attaching a reference,
etc.)

View Display is a view attribute (other examples of a view attribute:
zoom level, grid display, etc.)

File properties do not require a save settings, however view attributes
have always required a save settings.

Before MicroStation V8 , display of the levels were exclusively
controlled by a view attribute, so it was always known to perform a save
settings, to retain level display values after the file is closed.

Note:

Before MicroStation V8, reference levels were controlled through the
reference data, which was in a file setting. So changing the level
display of a reference level did not require a save set ting to retain
display values of a reference level after the file is closed. This has
changed in MicroStation V8. That is, the reference level display mask
data is controlled in the same manner as the active levels, thus
requires a save settings to retain display values after the file is
closed.

See Also