The scanner has three Search Keys that you can assign to a special search range; the Search Keys are set to number keys 
1 , 
2 , and 
3 :
  | 
  | 
  | 
| Search Key 1 | 
Search Key 2 | 
Search Key 3 | 
 
 
 Programming Search Keys 
 
-  Open the Search for... menu.
  -  Select Set Search Key, then select the search key you want to program.
  -  Select the search range you want to assign to this Search Key. Choose one of the pre-programmed service search ranges, one of the 10 custom search ranges, a Tone-Out search, or a Band Scope search.
 
 
 Using Search Keys 
 To start the search assigned to a Search Key, 
FUNCTION + tap that Search Key. For example, to start the search assigned to Search Key 2, 
FUNCTION + tap 
2 .
(You can't use the Search Keys when the scanner is in Scan mode or GPS mode.)
If the Search Key you select starts a Tone-Out search, the scanner switches to Tone-Out mode and searches the most-recently-used Tone-Out channel (out of the 10 available). If you want to search a different Tone-Out channel, use the 
SELECT-VOLUME-SQUELCH knob on handheld models or the 
SCROLL / FUNCTION knob on mobile models to select the Tone-Out channel you want to use.