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Once library is created user has no chance to rename it. Usecase: Developer downloads library JCommon and creates library in IDE with name JCommon. Later there is new version of the library so he downloads it and want to rename the old one according to its version to JCommon-0.9.3 and then creates new library for newly downloaded version.
Don't think this is intended to be supported currently. May be a UI problem, since references to that library would not automatically be updated. Will probably not be supported for D. Delete and add instead.
Agreed with Jesse. For promoD display name and library ID are the same things and therefore display name cannot be renamed.
*** Issue 44867 has been marked as a duplicate of this issue. ***
Seems to me more important than P3.
Fixed in NB 7.1 See issue #46863 *** This bug has been marked as a duplicate of bug 46863 ***