JIRA 7.6: Disable Drag and Drop Subtasks

I need to disable a new feature introduced in JIRA 7.6 related to draggin&dropping subtasks.
Reason is that I have a WBS implemented as subtasks and therefore the order is very important, so having them changed should be disabled.

Any idea or suggestion on how to do this?

Sorry, I misjudged the question.

Javadoc has mention to it as a FeatureFlag ( JiraFeatureFlagRegistrar (Atlassian JIRA 7.6.1 API) ) - so in theory you could probably pass in a system property to disable it across the system ( BUT - I would be careful on relying on that since feature flags can be removed…).

I would definitively suggest asking over on the User Community since there will be folks there that might have run into the same situation as user/administrators of the product and might come up with a better solution for you.

Thanks, actually I posted a question there and I got an answer:

that url doesn’t work

Sorry, here it’s: