A few more tips:
Remember that you can recall one of the Template Shows (Utility / Configuration / Show Manager screen) as a starting point for a new show or user. These give you a classic layout to fit your choice of Surface and MixRack, and with auxes set pre-fade for typical monitor use.
You can edit the settings after loading the Template and save them as a User Show as your personalised starting point.
If you are using Editor offline then you should first recall a Template or User Show once the program has loaded.
If you change the bus config you should first store the current settings to a Scene, then recall that Scene after changing the config. That will restore your pre/post aux and other mix settings.
Regards,
Carey