Date and time

[Marty Kay]

How can I insert the current date and time (similar to F5 in Notepad?

[PeterJones]

This old thread shows a PythonScript example which will insert it. You could then add that to the PythonScript menu items, and assign a shortcut to it using Settings > Shortcut Mapper

(This stackoverflow answer has lots of good screenshots of the process, with a slightly different date format.)