Quick Measure is a new feature in GstarCAD 2021, which measures distance and angle between 2D objects along x, Y axis very rapidly and accurately by moving the cursor.
How to access Quick Measure
Enter RAPIDDIST, then press Enter key to execute the command,
After executing the command, we get the prompt as we move our cursor, as shown in the following picture,
We can press Enter key to exit the Quick Measure, or choose the Settings option to pop up the following dialog,