Under UTILITIES, Page 2/3, REGISTR MODE (F3), you can set the parameters that WILL (ON) or will not (OFF) change when you change from a Registration to another (or load a Registration each time). Once these values are determined, press SAVE (F7) to save the REGISTRATION settings before you EXIT. Some menues e.g. ARRANGE have more than one page but if set to OFF, it doesn't matter what the settings within the other pages are. What you set ON will change to the value stored within the new registeration when you load a new register; and will not change when you set to OFF.
Hope this helps.