Without knowing your data structure, I’m going to suggest one for you that would make this easy.
User
- List of Profiles (Profile, list)
Profile
- User (User)
- Platform (Platform)
- URL (text)
Platform
- Name (text)
- Logo (image)
- Color (text)
The user would create a separate Profile record for each platform he has a link for and add it to his list of Profiles. The repeating group’s source would be:
User’s list of Profiles’s Platforms : sorted by Name
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