Editing Shortcuts for Command Buffer, Notebooks, and Procedure Windows

I would like to "second" some of the suggestions made in this forum to have the ability to add custom shortcuts for common tasks. In particular, I find myself wishing for several basic editing shortcuts in the command buffer, notebooks, and procedure windows so I don't have to take my hands away from the keyboard's "home row" so much while editing. In other applications I use, for example, I can delete the previous word (commonly CTRL+BACKSPACE), jump to the beginning or end of the current line without the arrow keys (e.g., CTRL+A and CTRL+E), and navigate to the previous or next line--again, without arrow keys--(e.g., CTRL+P and CTRL+N). I'm aware that some of these examples are already defined for other tasks in IGOR, hence my desire to also change existing shortcuts to my liking.

Thank you kindly for your consideration!

\\ Arthur