MODE- This allows selection of either a common or individual set of distortion, phaser, flange/chorus, delay, and reverb effects for Chroma (A/B layers) and Expander (C/D layers). The EQ and limiter effects are always global for the both Chroma and Expander layers. This is why the EQ and limiter are only visible on the Chroma FX page.
Global Effects- Both Chroma (A/B layers) and Expander (C/D layers) run through a single set of effects. This is useful when you'd like the same effects settings for both layers when creating stacked (DOUBLE MODE) or split patches.
Dual Layer Effects- Chroma (A/B layers) and Expander (C/D layers) each run through independent effects sections. If you're using an older computer, be aware that DUAL LAYER EFFECTS is more CPU intensive.