The Power-Ups on Memorang are maintained by the main authors and publishers, but you do have a few options if you'd like to further customize the content to your needs:
1. If you see a term you'd like to expand upon, you can copy it to your own sets where you can then modify it at will.
2. Suggest corrections to the original authors and content experts. This allows them to update the main Power-Up for you and everyone else who is studying.
3. Build custom study playlists with any content, whether it's from Power-Ups, your own flashcards, or something else you found browsing through Memorang.
More details here: