UserAgent: Mozilla/5.0 (X11; CrOS x86_64 11021.19.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.22 Safari/537.36
Platform: 11021.19.0 (Official Build) beta-channel auron_yuna

Steps to reproduce the problem:
1. Press Search + Ctrl + d
2. Docked magnifier appears with no warning message
3. Press Search + Ctrl + m
4. Warning message appears before full screen zoom is activated.

What is the expected behavior?
Warning message should appear before docked magnifier is activated, just like full screen magnifier.

What went wrong?
Chromebook Central users are confused about the "weird split screen" that they find on their ChromeOS device. Kids and cats and pranksters are enabling the feature.

These posts from the past week

https://productforums.google.com/forum/#!topic/chromebook-central/qhMkJfC3ibg
https://productforums.google.com/forum/#!topic/chromebook-central/Q4gTdcq6JYs
https://productforums.google.com/forum/#!topic/chromebook-central/LDBhULTWIG4

Did this work before? N/A 

Chrome version: 70.0.3538.22  Channel: beta
OS Version: 11021.19.0
Flash Version: 31.0.0.113 

One more example of why Accessibility shortcuts should be able to be disabled by users who do not need the features.

CBS TC.