A computer-implemented method for selecting a graphical element of a 3D object modeled on a CAD system, the graphical element being displayed on a touch-sensitive display, the method comprising: - displaying a graphical element on the touch-sensitive display; - detecting a first location of a first touch on the touch-sensitive display; - displaying a window on the display, the window comprising a pointer for selecting a graphical element; - displaying in the window an area surrounding the first location of the first touch; and - successively performing, until the graphical element is in a preselected state: (i) a first operation comprising: - detecting a second touch on the touch-sensitive display, the second touch being not performed on the window; - detecting a slide of the second touch on the touch-sensitive display; and - moving the pointer within and relative to the window according to the move of the second touch, the pointer remaining within the window; and (ii) a second operation comprising: - detecting a move of the first touch from the first location to a second location on the touch-sensitive display; - displaying in the window the area surrounding the second location on the touch-sensitive display, the pointer in the window remaining motionless within the window while the window moves and the display in the window being updated even if a displacement of the second touch is still detected. - displaying a graphical element on the touch-sensitive display; - detecting a first location of a first touch on the touch-sensitive display; - displaying a window on the display, the window comprising a pointer for selecting a graphical element; - displaying in the window an area surrounding the first location of the first touch; and - successively performing, until the graphical element is in a preselected state: (i) a first operation comprising: - detecting a second touch on the touch-sensitive display, the second touch being not performed on the window; - detecting a slide of the second touch on the touch-sensitive display; and - moving the pointer within and relative to the window according to the move of the second touch, the pointer remaining within the window; and (ii) a second operation comprising: - detecting a move of the first touch from the first location to a second location on the touch-sensitive display; - displaying in the window the area surrounding the second location on the touch-sensitive display, the pointer in the window remaining motionless within the window while the window moves and the display in the window being updated even if a displacement of the second touch is still detected. (i) a first operation comprising: - detecting a second touch on the touch-sensitive display, the second touch being not performed on the window; - detecting a slide of the second touch on the touch-sensitive display; and - moving the pointer within and relative to the window according to the move of the second touch, the pointer remaining within the window; and - detecting a second touch on the touch-sensitive display, the second touch being not performed on the window; - detecting a slide of the second touch on the touch-sensitive display; and - moving the pointer within and relative to the window according to the move of the second touch, the pointer remaining within the window; and (ii) a second operation comprising: - detecting a move of the first touch from the first location to a second location on the touch-sensitive display; - displaying in the window the area surrounding the second location on the touch-sensitive display, the pointer in the window remaining motionless within the window while the window moves and the display in the window being updated even if a displacement of the second touch is still detected. - detecting a move of the first touch from the first location to a second location on the touch-sensitive display; - displaying in the window the area surrounding the second location on the touch-sensitive display, the pointer in the window remaining motionless within the window while the window moves and the display in the window being updated even if a displacement of the second touch is still detected.