Adobe cc 2020

[#1]

How can i activate the duplication shortcut in InDesign cc 2020

[#2]

If you look under the Edit menu, you will see both the Duplicate, and also, Step and Repeat commands, and their respective key commands beside. Shift-Option-Command-D for Duplicate (Mac), for instance

[#3]

when working on a quick project i most prefer using shortcuts but they are
failing to wrkout
*A Enock.*
*"Examine yourselves to see whether you are in the faith; test yourselves. *
*Do you realise that Christ Jesus is in you ... unless, of course, you fail
the test?" *
*{Corinthians 13:5} *

[#4 · Accepted solution]

Perhaps there's a conflict with another key command sequence on your computer outside of InDesign.