Create a blueprint BP_HelpSign. Add a Material Billboard component. In the Billboard details, press ‘+’ under Sprite, open the tree that appeared, add your material, check Size in Screen Space, and set Base Size X and Y to something you like. I find .1 and .2 alright.
The material: set it to Translucent and Unlit in details, Disable Depth Test.
The material itself may be as simple or as complex as you like. Here’s mine:
Now the object to fix: when time comes, it just spawns a sign over itself, depending on your setup. And when you fix the object, it destroys the spawned sign. That’s it.
Hope everything is quite clear.
