How do I get a list of all blueprint classes, that are a child of a specific blueprint at runtime?

[Gomo]

It would be useful to have such functionality.
In UMG when creating list of items able to pick up or buildings to build - now I need to make data tables or arrays, which on the long run can be messy and unreliable.
Getting one array of classes derived from one particular class would solve quick feeding scroll list, combo boxes etc.