Olympus 38DL PLUS User Manual page 253

When the quick setup recall function is activated, you can use a simple keypad
shortcut to quickly switch to any of the first four custom setups for single element
transducers.
To activate the quick setup recall function
1. From the measurement screen, press [SETUP MENU].
2. In the menu, select MEAS.
3. In the MEAS screen, set QUICK SETUP RECALL to ON.
4. Press [MEAS] to return to the measurement screen.
To quickly recall one of the four first custom setups
 While in measurement screen with the quick setup recall function activated, press
[2nd F], [] to recall the first custom single element transducer setup.
OR
Press [2nd F], [] to recall the second custom single element transducer setup.
OR
Press [2nd F], [] to recall the third custom single element transducer setup.
OR
Press [2nd F], [] to recall the fourth custom single element transducer setup.
NOTE
This feature only works when a single element transducer is plugged into the
38DL PLUS.
DMTA-10004-01EN, Rev. D, November 2016
Custom Setups for Single Element Transducers 241