We've partially implemented already for the security app (see
MGNLUI-3326 and MGNLUI-3543) in 5.4.2. However, tree sorting is a much requested feature that should be available in all trees. The challenge is to provide a clear way to a return to the manual ordering of nodes. A manual sort order may be used to rearrange items in navigation menus or, in general, to order the page tree in any way a customer may want.
The UX concept page on sorting trees describes the usage of a popup for picking any sort criteria and order. We'd like to offer this in all apps.
This actually concludes the "trees should be sortable" story that has been requested by users and partners alike and for some time.