Search for an unknown value

[Cleverking2003]

Cheat Engine has an option for searching for an unknown value. This feature would be very useful in MGBA for reverse engineering and romhacking. Could this feature be added?

[endrift]

Can you describe what it actually does in more detail?

[Cleverking2003]

Here's an example: https://www.youtube.com/watch?v=hgrIKUR5Hww. The feature is called 'Unknown initial value'.