Source Audio Atlas compressor - Neuro desktop editor question

[ikay]

I'm  a newbie user of the Neuro desktop editor for the Atlas compressor and could do with some help understanding some of the myriad of editable features (there are a lot!). The first one being makeup gain. I understand how compressors work and the principle of makeup gain, but can anyone explain to me how the four controls relating to makeup gain in the Neuro editor (pic below) function and interact with each other:

 

 

• Auto-Makeup - OK I get this one!
• Reference Level - I'm assuming this is to specify a 'reference level' (presumably somehow relating to the level of the input signal) for the auto-makeup gain - but in the Atlas user manual it says the auto-makeup feature 'analyzes the level of the input signal' to match the levels. This implies that the ref level should be determined automatically, which seems to be at odds with having a separate control to specify a preset ref level. In practice, when using the Atlas with auto-makeup ON (as in the factory presets), and moving the blend control from fully wet to fully dry, I'd expect the levels to be much the same, but with my bass (standard passive P) the wet signal is noticeably louder than the dry signal with some of the factory presets (eg. Studio Snap Bass). 
• Makeup Gain - Does this override auto-makeup, or does it just add a +/- trim to the auto-makeup level (or the reference level)?
• Auto-Makeup Include Attack Knob - What does this mean?

 

Thanks for any input!

Edited 2 hours ago by ikay