This has nothing to do with a component limitations and/or efficiencies within a Blueprint. I totally disagree with the statement about using a “large number of components” being bad for performance–it’s all relative of course. Blueprints with 20+ components (however simple/complex) are a regular occurrence, parented or not. The fact that you can’t simply move components up or down within a list, becomes cumbersome after only 10 components. Always appending the list regardless of the component selected, is well…clunky. Not having the ability to move them up or down the list afterward, is just ridiculous. (see Data Tables). Love Blueprints, but I’ve been wanting this for years.