You can add or update the presets.

您可以添加或更新这些预设置。

Of course, one is not limited to these presets.

当然，人们不会局限于这些预设。

You have only to accept one of predefined presets.

你只有接受一个预定义的预置。

The radio can handle 30 FM presets and 10 AM presets.

该电台可处置30个调频预置，上午10点预置。

Change and store effects for each of the 256 presets.

变化和商店的影响为每个256预置。