Because in Photoshop DC no longer has the Alt + L + P command layer properties is very important to the company where I work
For some reason you’ve posted your question the Camera Raw forum, not the Photoshop forum.
Layer Properties does not exist, anymore. What was Layer Properties used for in the past? Maybe the same thing can be accomplished with other commands.
Go to Edit / Keyboard Shortcuts… / Summarize to see all possible commands and which ones have shortcuts. You can then add or redefine what commands have what shortcuts.
Retrieving data ...