copy and multiple pastes (because by default dd replaces the memory register):

xnoremap p "0p
xnoremap P "0P

also here:
https://stackoverflow.com/questions/7163947/paste-multiple-times

also works with shift (selection)

reset with:
setxkbmap

clear lock
keycode 66 = Mode_switch

keysym h = h H Left Left hstroke Hstroke
keysym j = j J Down Down dead_hook dead_horn
keysym k = k K Up Up lstroke ampersand
keysym l = l L Right Right lstroke Lstroke

https://superuser.com/questions/283548/remapping-capslock-key/