Use the dialog window called by the command Bitmaps->Digitalization for digitalization of the detailed points..
The process of the digitalization itself is similar to the determination of the transformation key. After pressing the left mouse button on the desktop of the bitmap window or with the zoom, the result transformed coordinates are displayed in the dialog window.
To store a point, you have to enter its prefix and number. If you don't enter a prefix, the program will use the implicit prefix set in Settings->Reduction. If a point number is entered, the program will increase it by one automatically after subtracting the point coordinates.
If you have selected the active coordinate list, the program will automatically store the read point in it. If you do not want to store the point automatically, set the active coordinate list to [None].