To use this in your tables, download, install, and activate this Extension like a regular WordPress plugin. Then change your table’s Shortcode from something like
[table id=123 /]
[table id=123 datatables_fixedcolumns="left" /]
The value “left” indicates, that the left column shall be fixed. Other possible values are “right” for the right column, or “left,right” for both of these columns fixed.
If this Extension is helpful for you, please consider supporting further TablePress development with a donation. Thank you!