What inspired this wish list request?
The Filter menu in the column list is very useful. The user just has to add tiny identifiers to the column names to get a handle to select a set of columns (much more flexible that grouping
.
For larger data tables, it could help to have an automatic way to add strings to column names.

What is possible at the moment:
- use JSL: https://community.jmp.com/t5/Discussions/Append-a-string-to-column-names/m-p/614825/highlight/true#M81470
- use Rename Columns from the Jmp Scripting tools Add-In: https://community.jmp.com/t5/Discussions/Append-a-string-to-column-names/m-p/614760/highlight/true#M81465
Unfortunately, the two approaches are not recorded in Workflow Builder. The user has to script on his own.
@Jed_Campbell found a very creative way to achieve the task with steps which are recorder by Workflow Builder:
https://community.jmp.com/t5/Discussions/Append-a-string-to-column-names/m-p/614826/highlight/true#M81471
This is can be seen as a proof that "actually it is possible" - but less as a viable way which you would suggest your colleagues after 2 weeks with Jmp.

So, under the line, at the moment there is no easy way to achieve the task.
What is the improvement you would like to see?
Please steal some ideas from Rename Columns from the Jmp Scripting tools and add them to Replace String from the Recode Column Names menu.
especially an
A similar option could also be added to Replace String from the Recode menu - which recodes row entries.
Why is this idea important?
It's not important - just an improvement of Jmp.