To fine-tune the frequency, use the arrow keys on your
keyboard (works only if the slider has focus) or use the control shown in the figure
above. The frequency steps available depend on the selected block size. If you
increase the block size, the frequency steps become finer but updating becomes
slower.
You may also type the desired frequency directly in the edit box shown in the figure
above. If the current WinMLS setting does not support the frequency, the nearest
supported frequency will be displayed when the edit box looses focus (to have it
loose focus pus the Tab key or click somewhere else with the mouse).