functionality to cut the connection between a linked table and the main tablehttps://community.jmp.com/t5/Discussions/linked-data-table-how-to-cut-the-quot-link-quot/m-p/573180#M78213
Summary Tables and Subsets have an option to "link" the new table to the original data table.
"Data views" have such a link enabled by default.

Cool:
Row Selections and changes to the values are automatically linked between the tables.
But sometimes one needs to remove such a link
- to add additional rows to the main table
- edit entries in the columns which were used for summary grouping
- to rename columns of the linked table
...
my wish:
remove the link via right click on

and click on a command like "cut the link".
workarounds:
- generate a (100%) subset of the linked table and delete the linked table itself
- a Links cannot be saved, so, one can save the tables, close both tables and open the "linked" table again - without the link.
more wishes submitted by 
Advanced Statistical ModelingAutomation and ScriptingBasic Data Analysis and ModelingContent OrganizationData Blending and CleanupData Exploration and VisualizationRe: functionality to cut the connection between a linked table and the main tableAnother application:
- pre-select a subset of a data table and click on data view to get a short overview (definitely the fastest way to get it

- ah, there are 2 more rows which I don't need, just mark them and delete the rows
ARGH !! - there is a protection shield due to the link to the original data table.

Re: functionality to cut the connection between a linked table and the main tableAnother application for an easily accessible function to cut the link between data tables:
If plots are exported as Interactive HTML files, they get significantly larger if they are linked to another table,
see this comment by @John_Powell_JMP
https://community.jmp.com/t5/Discussions/interactive-HTML-file-size/m-p/596368/highlight/true#M80004
Cutting the link can reduce the file size from several MB to 1.5MB (minimum size due to interactive HTML overhead?).
Re: functionality to cut the connection between a linked table and the main table - Status changed to: InvestigatingRe: functionality to cut the connection between a linked table and the main table - Status changed to: AcknowledgedHi @hogi, thank you for your suggestion! We have captured your request and will take it under consideration.
Re: functionality to cut the connection between a linked table and the main tabledefinitely the fastest way to get it
not anymore 
QuickSelect Toolbar is twice *) as fast:

*) by thumb - 1 click instead of 2 clicks
under real condition, the gap is even larger
1 click -> no mouse movement between 2 clicks
Re: functionality to cut the connection between a linked table and the main table - Status changed to: AcknowledgedRe: functionality to cut the connection between a linked table and the main tableThanks. Will help ...
Re: functionality to cut the connection between a linked table and the main tableBumping this, my team and I spent some time scratching our heads trying to break the link and couldn’t find a way other than save-as/close/reopen, which is both tedious and surprising.
Re: functionality to cut the connection between a linked table and the main tableyes, no good idea to keep such obvious bugs in a Software for years!
sure, there are workarounds like save/close or Subsets - but for every new JMP user such bugs are significant issues - blocking the workflow.
This approach competes now with AI driven data analysis!
Wish list - new Label: user experience