Can anyone let me know if this printer is capable of these certain tasks. I know that this printer can input another tray so it'll have 2 trays. But can the 2 different trays have 2 different paper sizes? Like say, 1 has the letter size then legal on the other?  And also, can it work to where it automatically choses the right paper size? I always print files that has both letter and legal sizes within the file. Can I print this? Will it choose the write paper size? I don't have to print at different times for different paper sizes? Please let me know, for this is what I'm looking for. Thank you.