Midi parts metadata missing?

Hello all, quick question: I know that the pool shows the information about all the audio parts used in the project, information such as the date they were last modified.
But the pool doesn’t show any information for the midi parts (segments or tracks), so the question is: Is there anyway to check the dates the different Midi parts in a project were last modified?

Thanks a lot!

PD: Using Cubase 5, and the information line doens’t give this info neither.