... is a much faster way to do that. Use the CTRL+ F8 mouse action to run the peg along the track centre-line. You will see that the peg co-ordinates are shown in the mouse action panel. Here I'm moving the peg until it aligns with the baseboard join at 1000mm, after which the Y co-ordinate can be read off. Even if the base board join was obscured by a sleeper, by making the X co-ordinate show 1000mm the Y co-ordinate is available: 2_110643_270000000.png If the lower baseboard edge is at an angle or not aligned to the grid, put a dummy track template along it. Then you can run the peg along that to get some co-ordinates for the baseboard edge. Subtract the one Y-value from the other to find the vertical distance along the baseboard join. For more complex measurements, an alternative to the ruler tool is to use the jotter, tools> jotter X-Y read-out menu item -- CTRL+ FULL STOP to change the ...