[MonoDevelop] System.Configuration.ConfigurationManager.AppSettings is read-only

[Chen, Feng]

Hello Mono experts,

In .NET, System.Configuration.ConfigurationManager.AppSettings is read-write so its keys/values can be modified.
But it is read-only in Mono.

Is this a known bug?
How does Mono application handle the case that users want to modify application settings?

Thanks.

Feng