Hey there 
First of all:
Sorry for not being very helpful to yourself - I just wanted to ask you how you managed to get those icons displayed for each component in the dynamic zone 
I’m searching for a simple solution a long time already and thought I might just ask…
I hope you can remember adn thank you for maybe being able to help me 
Oh and I think it’s StrapiV4 on that screenshot, right?
In V3 it has been a feature… idk why it got removed