How to show AActor's information in game?

Development Rendering
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1

I want to see AActor’s information in game. (Or Basic data from Pawn).

In this document, in the picture we can see a lot of sphere shows floating numbers.
And also, 'ScriptedAIController_C_0 (AActor’s name?) is shown at some AActor object’s head.
I know how to show my string in screen.

I inherited AHUD and overrided ShowDebugInfo, checked FDisplayDebugManager, and used FDisplayDebugManager::DrawString.

But, I don’t know how to print information string for each AActor objects at it’s head position.

2

Check this code…

void AHUD::DrawDebugTextList() {
  DebugCanvas->DrawItem(..., FVector2D(X, Y);