Can you find a MSV soft-key?. .... Apparently this issue was addressed with 4.3
A new TR screen soft key, “MSV”, allows setting a starting and ending voltage for "ALL TIU Tracks" just like individual TIU tracks. By default, "ALL TIU Tracks" start at 1 volt. Additionally, individual TIU tracks also start at 1. volt instead of the 5 volts as previously.