Create a text box that contains a statement or statements, with no input required.

Function BuildDataTable(CtrlName):ButtonControl
 String CtrlName
 variable pts
 Prompt Pts, "Number of Test Points:"
 DoPrompt "Enter number of Points", pts
 Make/D/O/N=(pts) FlowSet, FlowAct, TimedVol, TimeSecs, VolMeas, VolDry
 Edit/N=DataTable Flowset; appendtotable FlowAct; Appendtotable TimedVol; Appendtotable TimeSecs; 
 
END

Function BuildDataTable(CtrlName):ButtonControl
    String CtrlName
    NVAR G_Pinit, G_PH2O, G_Tcorr
    variable pts
    Prompt Pts, "Number of Test Points:"
    DoPrompt "Enter number of Points", pts
    Make/D/O/N=(pts) FlowSet, FlowAct, TimedVol, TimeSecs, VolMeas, VolDry
    Edit/N=DataTable   Flowset; appendtotable FlowAct; Appendtotable TimedVol; Appendtotable TimeSecs; Appendtotable VolMeas; Appendtotable VolDry
    DoAlert/T="Data Entry" 0, "Enter the collected data into the table and Press 'OK'"
    Volmeas = (TimedVol/(TimeSecs/60))
    VolDry = VolMeas*(298.15/(273.15+G_Tcorr))*((G_Pinit-G_PH2O)/1013.25)
 
END

Function BuildDataTable(CtrlName):ButtonControl
    String CtrlName
    NVAR G_Pinit, G_PH2O, G_Tcorr
    variable pts
    Prompt Pts, "Number of Test Points:"
    DoPrompt "Enter number of Points", pts
    Make/D/O/N=(pts) FlowSet, FlowAct, TimedVol, TimeSecs, VolMeas, VolDry
    Edit/N=DataTable   Flowset; appendtotable FlowAct; Appendtotable TimedVol; Appendtotable TimeSecs; Appendtotable VolMeas; Appendtotable VolDry
    
    Pauseforuser DataTable
//  I want to enter values in the table at this point and when execution continues execute the next
//  two lines to complete the table.    
     Volmeas = (TimedVol/(TimeSecs/60))
     VolDry = VolMeas*(298.15/(273.15+G_Tcorr))*((G_Pinit-G_PH2O)/1013.25)
 
END

Function Example()
 
    Make/O testwave
    Edit/N=PauseTable testwave
    
    fPausePanel()
    PauseForUser PausePanel, PauseTable
end
 
Function AcceptButtonProc(ba) : ButtonControl
    STRUCT WMButtonAction &ba
 
    switch( ba.eventCode )
        case 2: // mouse up
            // Do something that accepts the new data
            KillWindow PausePanel
            KillWindow PauseTable
            break
    endswitch
 
    return 0
End
 
Function CancelButtonProc(ba) : ButtonControl
    STRUCT WMButtonAction &ba
 
    switch( ba.eventCode )
        case 2: // mouse up
            // Do something to discard the results here (kill the wave?)
            KillWindow PausePanel
            KillWindow PauseTable
            break
    endswitch
 
    return 0
End
 
Function fPausePanel()
 
    NewPanel/W=(150,50,450,250)/N=PausePanel
    Button AcceptButton,pos={54.00,106.00},size={50.00,20.00},proc=AcceptButtonProc,title="Accept"
    Button CancelButton,pos={175.00,107.00},size={50.00,20.00},proc=CancelButtonProc,title="Cancel"
    TitleBox EditTitleBox,pos={64.00,54.00},size={151.00,19.00},title="Please edit the wave in the table"
EndMacro

Menu "Macros"
    "Setup/1", DemoSetup()
    "Process/2", DemoProcess()
End
 
Function DemoSetup()
    Make/O testWave
    DoWindow/F DemoTable
    if (V_Flag == 0)
        Edit/N=DemoTable testWave
    endif
    
    // This is not necessary if the user knows what he is doing
    DoAlert 0, "Enter data in the table and then choose Macros->Process"
End
 
Function DemoProcess()
    Print "DemoProcess: Processing started..."
    // Add your processing here
    Print "DemoProcess: Processing finished"
End

//Function order in the procedure
//This will work...
 
Function One()
    //Lines of code
End
 
Function Two()
    //Lines of code
End
 
Function CallAll()
    One()
    Two()
End
//...As well as this?
 
Function CallAll()
    One()
    Two()
End
 
Function One()
    //Lines of code
End
 
Function Two()
    //Lines of code
End

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Function BuildDataTable(CtrlName):ButtonControl
    String CtrlName
    setdatafolder root:Packages:Regression
    NVAR G_Pinit, G_PH2O, G_Tcorr
    variable pts
    Prompt Pts, "Number of Test Points:"
    DoPrompt "Enter number of Points", pts
    Make/D/O/N=(pts) FlowSet, FlowAct, TimedVol, TimeSecs, VolMeas, VolDry
    Edit/N=DataTable   Flowset; appendtotable FlowAct; Appendtotable TimedVol; Appendtotable TimeSecs; Appendtotable VolMeas; Appendtotable VolDry
    DoALert 0, "1. Populate the first 4 columns with the test data.\r2. Once data entry is complete press the 'Process Table' button\rPress 'OK' to continue"
END
 
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Function ProcessTable(CtrlName):ButtonControl
String CtrlName
    String fold = Getdatafolder(0)
    Print "%s", fold
    Wave Volmeas, TimedVol, TimeSecs, VolDry, FlowAct
    Make/O/N=(numpnts(VolDry)) xwave, ywave
    NVAR G_Tcorr, G_Pinit, G_PH2O
    Volmeas = (TimedVol/(TimeSecs/60))
    VolDry = VolMeas*(298.15/(273.15+G_Tcorr))*((G_Pinit-G_PH2O)/1013.25)
    Xwave = FlowAct
    Ywave = VolDry
END
 
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