: Advanced users often use AOB (Array of Bytes) scanning to find the code responsible for filter depletion and "nop" (no-operation) the instruction.

If you are looking to add a "feature" to a custom trainer or mod for (often associated with the CODEX release group in the modding community), a highly useful and thematic addition would be a "No Filter Depletion / Infinite Filter Life" toggle.

: A simple but popular "feature" is skipping the long intro videos by renaming legal.ogv and intro.ogv in the game's installation folder. Existing Trainer Features for Inspiration

For those creating trainers or editing game files, there are several ways to implement "cheats" or features:

If you are building a more comprehensive tool, common features found in popular community trainers include: