The trace can be scrolled using the scrollbar directly beneath the menubar. The trace can be magnified both in the vertical and horizontal directions using the two scales to the left of the trace.
The base numbers, original sequence, edited sequence and the trace can be removed from the display using the check buttons in the "Display" option of the View menu.
The font for the original and edited sequence can be chosen from three sizes, selectable by using the Font submenu of the View menu.