When focus is on the grid, the letter keys are sadly neglected (no use at all, except to start editing and output that character first in the edit box). Below is my proposal of a left-hand navcluster to make the most-used item commands available in an easy-to-remember spatial layout. This is working Autohotkey code:

    #If WinActive("ahk_class ThunderRT6MDIForm ahk_exe InfoQube.exe") and Win_GetFocusedClass() = "Exontrol.Gantt.WindowList"
        
        $q:: Send ^!{Up} ;; move item to top of grid
        $w:: Send !{PgUp} ;; move item up 10 slots
        $e:: Send {Up} ;; move focus up
        $r:: Send !{Up} ;; move item up
        $t:: Send ^{Space} ;; toggle fold / expand current branch
        
        $a:: Send !{Left} ;; move item left / promote item
        $s:: Send {Left} ;; move focus left
        $d:: Send {Down} ;; move focus down
        $f:: Send {Right} ;; move focus right
        $g:: Send !{Right} ;; move item right
        
        $y:: Send ^!{Down} ;; move item to bottom of grid
        $x:: Send !{PgDn} ;; move item down 10 slots
        $v:: Send !{down} ;; move item down

        $Space:: Send {F2} ;; change / edit focused item

;;;;;;;;;;;;;;

Win_GetFocusedClass()
{
ControlGetFocus, AControl, A
return, RegExReplace(AControl, "\d", "")
}