One of the most common misconceptions is that this editor is inside the app itself. You cannot edit data packs directly on your phone (unless you are using advanced file managers with root access on Android).
Rename leagues and cups to match their official titles (e.g., changing "Global Cup" to "World Cup"). Creating and Importing a Data Pack
Link high-quality assets to specific team IDs. How to Access and Use the Editor
Open the editor on your PC, load the .db file you copied from your phone, and start editing.