|If you click on any place of the schematic sheet, "Parts Select"
dialog appears. Then please choose BTWLPF (Butterworth IIR Low Pass Filter).
After you place BTWLPF, please double-click on it. Then "Parts Attribute" dialog appears and please click "Change Parameters".
Then "Butterworth LPF Parameters" dialog appears. Please set Cutoff Frequency (Fc) 2000.
Left click on BTWLPF to select it and right click to choose "Open a Monitor".