Which "config variable" in which level is updated automatically

The CFG variable you are looking for is MS_LEVEL_AUTO_SYNC_ATTRIBUTE_LIST

"This variable controls the list of level-attributes that will automatically synchronize when a file is opened. The attributes can be one or more of the following as a comma separated list : OverrideSymbology, OverrideColor, OverrideStyle, OverrideWeight, OverrideMaterial, ByLevelSymbology, ByLevelColor, ByLevelStyle, ByLevelWeight, ByLevelMaterial, GlobalDisplay, GlobalFreeze, DisplayPriority, Transparency, Lock, Plot Each of the above attributes can take a "Reference" or "Library" prefix. Without the prefix, the said attribute will be synchronized for both reference & library levels."

So you would set this something like

MS_LEVEL_AUTO_SYNC_ATTRIBUTE_LIST > ByLevelSymbology

Do be aware that this will apply to every drawing you open in this workspace (or with your user account).
If your workflow is to actually adjust levels on a "sheet" basis, or even a "collector file" basis (there are other ways to accomplish that, but people do what people do) this would undo any changes you wanted to make.

If you don't make changes and don't plan to make changes, then this should give you what you want.

Hi MaryB,

Thank you for your help. But it means I need to close and re-open file in order to update automatically? Is it right?

Thank you, MaryB.

I tried to set value ByLevelSymbology

But nothing changes automatically.

I don't know why.

Can you give us a screen shot of that setting in your configuration (like you shared before)?
Did you restart MicroStation?

Hi MaryB,

Yes, I restarted software but nothing changed

I believe Mary misinformed you on what to set the variable to. She is having you set the ByLevelSymbology when you are not using bylevel.

You are using overrides. Try setting the variable to "OverrideSymbology" instead.

Tim Hickman said:

Try setting the variable to "OverrideSymbology" instead.

Good point Tim. I missed that it was set to Overrides in LM.

One other thing to consider, you can block synching overrides, bylevel settings using this variable.

(MS_LEVEL_AUTO_SYNC_ATTRIBUTE_LIST). This variable controls the list of level-attributes that will automatically synchronize when a file is opened. The attributes can be one or more of the following as a comma separated list : OverrideSymbology, OverrideColor, OverrideStyle, OverrideWeight, OverrideMaterial, ByLevelSymbology, ByLevelColor, ByLevelStyle, ByLevelWeight, ByLevelMaterial, GlobalDisplay, GlobalFreeze, DisplayPriority, Transparency, Lock, Plot Each of the above attributes can take a "Reference" or "Library" prefix. Without the prefix, the said attribute will be synchronized for both reference & library levels.The attributes list may be preceded with a single comma separated "+" or "-" to incrementally change the initial default setting.

Tim Hickman said:

Try setting the variable to "OverrideSymbology" instead.

Good point Tim. I missed that it was set to Overrides in LM.

One other thing to consider, you can block synching overrides, bylevel settings using this variable.

(MS_LEVEL_AUTO_SYNC_ATTRIBUTE_LIST). This variable controls the list of level-attributes that will automatically synchronize when a file is opened. The attributes can be one or more of the following as a comma separated list : OverrideSymbology, OverrideColor, OverrideStyle, OverrideWeight, OverrideMaterial, ByLevelSymbology, ByLevelColor, ByLevelStyle, ByLevelWeight, ByLevelMaterial, GlobalDisplay, GlobalFreeze, DisplayPriority, Transparency, Lock, Plot Each of the above attributes can take a "Reference" or "Library" prefix. Without the prefix, the said attribute will be synchronized for both reference & library levels.The attributes list may be preceded with a single comma separated "+" or "-" to incrementally change the initial default setting.

Thank you so much, mwlong

Yes, your answer is what I was looking for.

Do you know why MicroStation differing with AutoCAD in automating update color with default setting.

I feel MicroStation is more complex than AutoCAD in using.

Tuan said:

Do you know why MicroStation differing with AutoCAD in automating update color with default setting.

Because it is not AutoCAD. Different companies make different products. 

Yes, I see. Thank you, mwlong.