I made a tool in Blueprint, Trailmarker. It's for placing markings on surfaces in Unreal Engine 4 and comes with a wide range of features and settings.

Features:

• Project markings on landscapes, static or skeletal meshes.
• Add markings to a decal or in your material through a material function.
• Only capture when needed or told to.
• Automatically release render targets from memory.
• Features not used can be turned off to save performance.
• Activated by player pawn, chosen classes, or actors that are inside customizable bounds.
• Support motion and rotation.
• Below surface and depth culling, hide actors from capture when they are below calculated surface level.
• Save and Load to disk.
  
  
  UE4 Marketplace:
  https://www.unrealengine.com/marketplace/en-US/product/trailmarker