Hero contains a Measure Utility mode that enables users to quickly check measurements, perimeters & areas on the model
Enter Measure mode by clicking the Measure button on the left toolbar or the Keyboard shortcut 'Q'.
Measure mode has three submodes - length, perimeter & area which can be toggled in the Guide box or by using the keyboard shortcut 'Tilde'
The Length submode will show the dimensions of a line draw by left-clicking on the plan.
The Perimeter submode will show the length of a polyline such that you can trace a perimeter around a building or zone as required. Click back on the original or double click to finish the measurement.
Finally the Area submode will area in square metres of the drawn polygon. Draw the polygon out similar to the Perimeter submode.
For all these submodes, Right-click removes points & holding shift draws straight lines as in the other drawing modes.