First Time user - Copy Task data to a Test Case

As mentioned in the title, I am a first time user of Azure DevOps.

We have a section in our Tasks called "Validation" this is to give the developers guidance on how a field should behave.

The same "Validation" data is used in our test cases, I do not want to duplicate the effort.

Is there a way to copy the Task "Validation" field data into our Test Case "Validation" field. Or something similar to a shared step where I can select the data from a list.

How this makes sense on what I am trying to do