Mouse wheel and keyboard +/- keys are used to zoom in and out of plan and 2D drawings. In the 3D model, the mouse wheel is used.
Zoom with Middle Mouse Button
At any point, the wheel of the mouse is turned forward to get closer to the point where the mouse cursor is, and by turning it backwards, it is moved away from the point where the cursor is.
Zoom In with +, Zoom Out with -
Zoom operations can be done dynamically with the (+) and (-) keys on the numerical part of the keyboard.
(+) key zooms in on the drawing, (-) key zooms out. In addition, the Zoom Zoom In and Zoom Out commands function in the classic menu.