I search usefull features in Chrome “Toggle device Toolbar” tool

Hi all,
using Chrome/Chromium under kubuntu 18 for web development I often use “Toggle device Toolbar” with different devices

and would like to have some small/usefull features m as :
  1. If it possible to edit devices labels(array 1 at my image), like I would like to show in
    device label width*height or /sm/md/lg size as I can not remember all devices to which dimention they belongs
  2. Changing device is it possible to set 100% at once? I dislike percents less 100%…
  3. Like point 1 is it possible label of devioces we have after install ?

Maybe some additive tools ?