the fasted solution. ~ 25 hotkeys i.e. F7 numpad7 ins +..
The vid shows how to set up the hotstring " f b [ " for ↓
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2KEY shortcuts → use key combinations with the 1st keys
Lctrl Lwin Lalt Ralt Rwin Rctrl -_- otherwise you must delete the character triggered by the 1st key.
(1-9 a-z , - . +..)