Please find below the keymapping used for this mod.

- main - F8 Key, 'place anywhere' mode togglesnap
- F1 Key, object snapping toggleground
- F2 Key, ground and surface snapping toggleworkshopSnap
- F3 Key, workshop grid snapping toggleoutlineToggle
- F4 Key, toggle object ouline in workshop modeextraOutlineToggle
- INS key, toggle extra objects selection modetimeoutFreeze
- F5 Key, ground and surface snapping toggleclampedStoreToggle
- F6 Key, toggle storing clamped objects (like signs and posters) into workshop,
                      when underlying object is scrapped or moved into workshop storagechangeRotateAxis
- Ctrl Key, change rotation axisrotateStepMinus
- Numpad '-' Key, decrease rotation anglerotateStepPlus
- Numpad '-' Key, increase rotation angleresetAngles
- O Key, set XY object angles to 0removeTremor
- B Key, remove 'blur' effect from object after move/rotatemoveDown
- S key, move object downmoveUp
- W Key, move object upmoveLeft
- A Key, move object leftmoveRight
- D Key, move object rightmoveBack
- Q Key, move object to playermoveForth
- E Key, move object from playermoveStepMinus
- Numpad '/' Key, decrease movement speedmoveStepPlus
- Numpad '/' Key, increase movement speedscaleStepMinus
- PgDown Key, decrease scale stepscaleStepPlus
- PgUp Key, increase scale stepscaleDown
- '1' Key, decrease scale by 10%scaleUp
- '3' Key, increase scale by 10%scaleReset
- '2' Key, reset scale to 100%undo - Backspace key, undo last actioncopyState
- '=' Key, remember outlined object position, rotation angles and scalecopyPosX
- '7' Key, set outlined object X position to remembered datacopyPosY
- '8' Key, set outlined object Y position to remembered datacopyPosZ
- '9' Key, set outlined object Z position to remembered datacopyAngleX
- '4' Key, set outlined object X angle to remembered datacopyAngleY
- '5' Key, set outlined object Y angle to remembered datacopyAngleZ
- '6' Key, set outlined object Z angle to remembered datacopyScale
- '-' Key, set outlined object scale to remembered datacopyAll 
- '0' Key, set outlined object position, rotation and scale to remembered dataduplicateKey
- '/?' Key, see "[cheats]" section abovedeleteKey
- 'DEL' Key, see "[dangerous]" section
aboverotateLeft = '<' Key, rotates highlighted object anti-clockwise direction
"left"rotateRight = '>' Key, rotates highlighted object clockwise direction "right"
physicsOn = 'Home' Key, turns object physics on (makes it non-static, if possible)
physicsOff = 'End' Key, turns object physics off (makes it static, if possible)
timescaleToggle = 'F11' Key, change timescale to buldTimescale value (default is 0.01)
globalMoveToggle = 'Alt' Key, toggle object movement relative to player or global world axis

I did test the settings, however being not a Lefty and using a Gamepad for Fallout 4, there might be other / better combinations possible. Please let me know if that is the case!