If you like to search with the scanner, to have a Quick Key set up for search ranges, either Custom Search or Service Search, is very valuable for a couple reasons.
First, the speed to activate the search range is much faster without having to go through the menu
Second, you can use the SCAN button to resume a search where if you have accessed the Search via the Menu, it stops the search and resumes scan.
I have not found a way to assign a quick key without using software though
chris