Sony DVS-7300 User Manual page 384

Basic Register Operations
Deleting Individual Sub-registers Not in the "USER" Group from
Snapshot Registers
For snapshot registers, by using the following operation you can delete the
data of individual M/E-1, M/E-2, M/E-3, and P/P & DSK sub-registers.
1
2
3
9-10
Chapter 9 Registers
In the REGISTER menu, select item 3 (ATTRIB EDIT).
The ATTRIB EDIT menu appears.
Use the cursor movement buttons (M m < ,) to align the cursor with
the sub-register you wish to delete.
Hold down the SHIFT button and press F10 (CLEAR).