If I make a change in the By-me system (SAI and/or home automation) are the schematics on the Touch pad also automatically changed?

No, once you make the changes in the control unit, you need to transfer the data to the same system saved in EasyTool and then press "Edit" on the Touch pad. EasyTool will then report any changes observed between old and new settings. Devices that have been removed will be erased automatically from the pages of the Touch pad and then you just add the new ones.