At its core, MMTool is a module manipulation utility. UEFI firmware is not a single monolithic block of code; it is a collection of individual modules—drivers, protocols, and configuration data—packed into a firmware volume. MMTool allows users to "peek" inside these volumes to see exactly what makes up their BIOS.
MMTool allows you to:
Select the volume (typically the one containing other DXE drivers) and click . --- Mmtool Aptio 4.50.0023