What steps did you take to find the answer before deciding that the information was not available anywhere and resorting to a forum thread?
The places you could have looked include the text which appears every time you start TPT (which you can make reappear by pressing F1), and in the hotkeys and clipboard and stamps pages on the wiki (which turn up in the wiki search results for "copy and paste"). Or you could have tried the shortcuts which most other programs use for copy and paste.
Yes pretty much. EDIT: Lock this thread, they're still the same keys.