m_m
9
if you haven't already seen them, we have a bunch of docs and walk-thru videos:
in particular, you might want to check out:
Getting Started with Particle Workbench:
Building Firmware Locally with Particle Workbench:
regarding intellisense weirdness, unfortunately it can be a bit fiddly from time to time - we have a troubleshooting guide over here:
hope it helps 
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