I've recently had the opportunity to try this feature out and I have to tell you all I love it!!! I frequent hunting grounds that have both "park" and "relic" target possibilities. Being able to go in and associate different icons to specific or groupings if VDI's is great. As you probably know a lot of park and relic targets have similar VDI's and your able to assign a primary and secondary icon to each VDI or group of VDI's. Even if there isn't an icon you need, you can type in text such as crushed can, key or shotgun shell just to name some things I run in to while hunting! I just hope White's plans on adding user suggested icons to software upgrades in the future! Gotta have a shotgun shell!