Great info.
How can I tell what functions are in a module. I exported a few modules but if I know the function how do I know which module should I make the changes to?

In this particular example you mentioned LSZ module but I cannot find it in the list.

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4.8is 2004 imola red
4.8is 2005 Black on Black - DINAN/2 sold
4.4 2004 X5
2003 330xi
2008 328xi - sold
4.4 2000 X5 - sold