Hi!
I'm sorry but I will not change CadTools according to your request. It would not benefit the user interface.
As an alternative you can set up some formulas in Excel and calculate length and slope. Use "Export polyline coordinates to Excel" (Lines).
If you copy only X,Y Z columns from that workbook to the one with your formulas you will get what you want. Save your Workbook for future use
The formula for length is: Sqr(((EndX-StartX)^2) +((EndY-StartY)^2)) or (((EndX-StartX)^2) +((EndY-StartY)^2))^0,5
And for slope in percent you use: (EndZ-StartZ)/Length*100
/Lars