Rigol DSA1030A series - Direction Key; Figure 1-23 Direction Keys

RIGOL Quick Start
1-28 User’s Guide for DSA1000 Series
1.6.3 Direction key
Figure 1-23 Direction keys
The directional keys have following functions:
1. Increase or decrease the parameter value at specific steps while editing a
parameter.
2. Move the cursor among root directory in Storage function.
3. Select the character in the upper or lower row of the soft keyboard while editing
file name.
4. Select the adjacent reference points in Edit menu: AMPT  Corrections 
Edit.