If you have "Help" instead of "Ins", replace it with Overgod-tier. Keep pressing it, it will come.
OC, feel free to share.
EDIT; Home is now G-od tier. I didn't know it would go to the beginning of a line, I always used macros "lol".
No idea, but I have never felt the need to do that. Maybe CTRL TAB, and CTRL SHIFT TAB?