Hi stephenpasquini,
Thank you for your purchase.

In our older versions of the plugin we had an option to add a br tag in column headers but unfortunately due to some security reasons we removed it.
For now if you have a "long" our suggestion is to use scrollable option because there is no possibility to change the header even if you use some CSS.

Is the Scrollable option something that you might consider?

Best regards.

Hi stephenpasquini,

Sorry to disappoint you but unfortunately something like this is not possible at the moment.
I can give you some workaround and maybe it will be useful for you.

First check the Responsive option in Additional settings.
Then for columns that have long headers (or columns that are "less important") you can select an option to be hidden on mobile in Optional column setup for that columns.
Then in wpdatatables Settings page increase the Mobile width for example to 3000px.

Then for that table, when you view it on computer, that columns will have "+" sign and when some user click on it , the content of that column will be displayed.

Please note that this is just a workaround not a proper solution, but we have some requests for future versions to implement functionalities to hide on desktop and for users to be able to change the column headers to their desire.

Sorry for any inconvenience and thank you for understanding.

Best regards.