I have started flying ETOPS sectors recently and a couple of scenarios are foxing me.
Other than reading the operations manuals at hand as mentioned previously, wouldn't/shouldn't you be asking those questions to your Captain and the F/officer as part of the cockpit briefing??
Why wait for your indepth ETOPS question answers from this forum??
ETOPS operations and aircraft maintenance functions are both considerations in your planning.
You are flying with an ETOPS airline??