One question...

Theme: Signal trace, signal segment, trace, signal, net

How can I switch off the beep when coonecting?
Please go to menu "Settings" and select. Menu "Settings (INI-File)...". Scroll down to section "Other". Look for "Beep tone at connecting". Click in the line beside to enter to the drop down menu.

1 Image: The object inspector to set the beep when connecting signals.