Checking for impedances and good signals with BioExplorer

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HiHello Pete et al., I am so far a Thought Technology EEGer, but I have an exploratory question about BioExplorer:(1) how do you check impedance? do you use a meter that must be purchased separately?

(2) is raw eeg on the usual training screens, or how do you check to see what's going on with the eeg as you're training? (that your signal's good etc.)ThanksLiz Margoshes