The CURRENT Analyzer command is one of a series of directional
    commands that allows you to traverse a program's structure.
    Depending on the command (FIRST, BACK, or NEXT), a pointer is
    placed at plot locations of interest to you. The corresponding
    source lines for that portion of the program are displayed
    alongside the plot. However, the CURRENT command does not change
    the position of the pointer. Rather, it redisplays the current
    plot with the pointer and corresponding source lines in the same
    position.

    The CURRENT SUBTREE command displays the current subtree at its
    first leaf (equivalent to the FIRST command).