The previous topic was closed, so here my last words about it, because there are zillions of technical misunderstandings.
I do not mean a physical file lock (I am a software engineer but an author also) or any other problem that could have to do with it, I mean a simple virtual lock, a switch that has nothing to do with a file locking mechanism or in-memory topics. If you lock it in the app, for example by reading an attribute, lock the editing globally with a shared-memory-lock attribute that’s it. It does not affect any reading mechanisms, writing mechanisms, file locks or file attributes.
It would be very useful and I am sorry if you are ignoring it. That’s all. Now you cn close me again/delete me whatever