j / kMove focus to next / previous item
h / lMove between concept and derivatives
i / aEnter Normal mode at start / end
Alt+i / Alt+a / Alt+Shift+aEnter Insert at start / after first char / end
o / OAdd a new concept below / above
vToggle Visual selection
yYank (copy) the current block/selection
pPaste the yanked content below
dBegin delete chord
cBegin change chord
SpaceMore actions...
/Search across the topic