avenue 3 : mapping > app / comp midi mapping - click on the item you want the addy for
avenue 4: mapping > application OSC - click on the item you want the addy for
if OSC isnt enabled in the preferences, then it wont show you the addy.
check out the render queue in after effects - in the output module there are cropping / scaling options.
you can make your own settings for the output module via the AE prefernces so you dont need to re-enter them every time and you can then use the render queue to batch process.