I'm using FNMS 2016 but as far as I know this has always been a missing feature.

When managing entries in the Enterprise hierarchies (cost centers, locations etc.) it will be very useful to be able to move items. Currently the only options are to edit or delete but neither of these will help if you are trying to implement a restructure. For example cost centers; it's highly unsual for these to remain static so when they are moved around the organisation as part of normal restructure we need to be able to reflect this in FNMS. A drag-and-drop capability would be really useful.

I can see a situation where things are assigned to a particular entry and so if you move them higher or lower in a hierarchy you may wish to consider the effects of a change before they are applied. This could be a simple warning but in all scenarios an organisation will always need to consider the effects of these changes anyway.