Updated: 21 May 2023
Remove all text from line, remain in normal mode
nmap <Leader>S S<Esc>
nmap <Leader>cc cc<Esc>Add blank line above or below current line
nmap <Leader>O O<Esc>j
nmap <Leader>o o<Esc>kScroll left and right without moving cursor
map <C-L> 5zl
map <C-H> 5zh