function m6()
	local inst = mc.mcGetInstance() --Get the instance of Mach4
	mc.mcCntlGcodeExecuteWait(inst, "g04 p500")
	mc.mcCntlCycleStart(inst)
	local currentTool = mc.mcToolGetCurrent(inst) --looks for the tool currently selected
	local selectedTool = mc.mcToolGetSelected(inst) -- looks at the tool you have selected
	local tpos = (selectedTool * 60) --Tool position is the current tool number * 60 (example tpos = (selected tool) Example tool 2 --> 2 * 60 = tpos = 120)
	local Out = mc.mcSignalGetHandle(inst, mc.OSIG_OUTPUT21) --Get handle for output 22 and set to "out" variable
	
	--local currentTool = 1
	--local selectedTool = 4
	if (selectedTool ~= currentTool) then --Change tool: if the selected tool isnt = to the current tool, you want to change your tool 
				
		local hReg, rc = mc.mcRegGetHandle(inst, "iRegs0/CurrentSlot")
		
mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f", ( tpos + 8 )))

		if (selectedTool > currentTool) then
			--mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f", ( tpos + 8 )))
			mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f" , tpos)) --Reference, move to position, back up to lock position
			mc.mcCntlGcodeExecuteWait(inst, "g04 p1500")
			mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f", ( tpos - 7.74146 )))
			rc = mc.mcRegSetValue(hReg, selectedTool)
			mc.mcToolSetCurrent(inst, selectedTool)
		
		elseif(selectedTool < currentTool) then
			mc.mcSignalSetState(Out, 1) --Turn OUTPUT21 on
			--mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f", ( tpos - 8 )))
			mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f" , tpos)) --Reference, move to position, back up to lock position
			mc.mcSignalSetState(Out, 0) --Turn OUTPUT21 off
			mc.mcCntlGcodeExecuteWait(inst, "g04 p500")
			mc.mcCntlGcodeExecuteWait(inst, string.format("G53 G0 \nG53 G1 F3000 A%4.4f", ( tpos - 7.74146 )))
			rc = mc.mcRegSetValue(hReg, selectedTool)
			mc.mcToolSetCurrent(inst, selectedTool)
		end
	end
	
	
--This function is here to allow the debugging from the Lua editor
	if (mc.mcInEditor() == 1) then
		m6()
	end
end

--end