Hey @zbrah !
I think I found a lead through Dave’s how to dynamically change element’s ID project.
I created a new post on the Help Code section, have a look if you want 
It looks promising and I’m getting so close but I’m still missing something !
EDIT:
If I were to translate the code into english, I think I understand the overall meaning of it which is to :
" Select all element with the specific class: “dynamic-checkbox” that are within the collection list with the ID of “dynamic-items” and reset their ID with the Dynamic Embed field I specified. THe problem is, I think I’m missing something on the second line of the code… not 100% sure what it means or how to translate it into english."