Community Tip - You can change your system assigned username to something more personal in your community settings. X
This answers the question but brings up another for the developers: Is there any chance of adding this functionality to the list of Services available to end users? Specifically to change Property Category, Data Change Type, etc. via scripting.
Hello,
You should be able to get it done via a trivial extension (I didn't test it though):
getProperty("myProperty").getPropertyDefinition().setCategory("newCategory");
getProperty("myProperty").getPropertyDefinition().getDataChangeType(DataChangeType.ALWAYS);
/ Constantine