As a general rule, "click" means pointing and then briefly pressing the

left mouse button (except where the text expressly says you should use

the right mouse button).

In this instruction manual "drag" means moving the mouse pointer whilst

keeping the left mouse button pressed down.

If in the video area the mouse pointer changes from "crosshair" to

"arrow" then the object can now be clicked on and dragged or moved.

Mouse pointer, here as: standard crosshair 

Mouse pointer as arrow: drag to make fine

adjustments to the measured value    

Mouse pointer as arrow: drag to shift the

measured value

Fine adjustments can also be made subsequently to the measurement

lines of the measurements:

Important: make sure no measurement or reference object is active -

in other words, first switch from " Measure " -> " Off ".

This can also be done by clicking on: .

For many measurements the subsequent fine adjustment is not really