I remember in lms 2.5, Device Manager, when I click on "Routers" I got a breakdown of routers listed by type. there were folders such as 1700 which has all 1700 series routers. it's the same for switches. all switches or routers that are the same type can be located easily going through these folders.
in lms 2.6 I don't see the breakdown. did I missed something from install or this how it is?
The device selector was changed in LMS 2.6 to make it more powerful. However, you can re-enable some of the old features by going to Common Services > Device and Credentials > Device Selector Settings > Group Customization.