http://moi3d.com/forum/index.php?webtag=MOI&msg=8665.136
Shortcuts for manipulation:
Fillet; Inset; Shell ; Offset(Brep)

Numpad+ -> value + value/2
Shift+Numpad+ -> value + value/10
Numpad- -> value - value /3
Shift+Numpad- -> value + value/10
Numpad* -> value*2
Numpad/ -> value/2

//added
small adjustments
Ctrl+Shift+Numpad+ -> value +value/100
Ctrl+Shift+Numpad- -> value - value/100
r - reset distance to 0 -> to start new one