You can’t directly edit or view the height of an existing takeoff. However, you can confirm that your measurements are accurate by using the Measure Tool.
Verifying your measurements
On the toolbar, select the Measure Tool (it’s the tool on the far left).
Use it to measure an existing line on your drawing.
If the number shown in the Measure Tool matches your takeoff, you know your drawing is scaled correctly and your takeoff numbers are accurate.
Editing afterward
Currently, the height itself cannot be adjusted after a measurement has been taken. If the height was set incorrectly, you’ll need to delete the measurement and create a new one with the correct height.