How to modify the intro/purge line in PrusaSlicer software. The key steps covered are:
Navigating to Filament → Custom G-code
Changing the X value (e.g., 60 → 200) to make the intro line longer
Changing the E value (extrusion, e.g., 9 → 15) to make the line thicker
Re-slicing the model each time to preview the changes