Editing Custom Labels in Force.com IDE !
Custom Labels are key to create multilingual Salesforce apps. Developers usually move their page/class to Custom Labels in two steps
The first cut of the page/class is developed using hard coded English labels & messages. This helps in speeding up development time, as switching between IDE & “Custom Label” UI, for each label and message for sure slows development speed.
In second cut, developers usually scan all the pages and classes for any hardcoded English labels/messages. Custom Label is created for each such hardcoded label/message and replacements are done with the Custom Label full api name.
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