Declare the tables to be changed in the file %CADENAS_SETUP%/plinkcommon.cfg in the section ADDITIONALTABLES.

[ADDITIONALTABLES]
#:VALS_S
#:HELP;default;this table is used to store references concerning PLM-systems
t0=PLMTABLE
#:VALS_S
#:HELP;default;this table is used to store Assembly-structures with 
  ERP-information
t1=DATATABLE
#:HELP;default;this table is used to store project-specific data 
  (ie. project specific partnames for CAD-files)
t2=PLMTABLE2

Add the key "t" followed by a continuously increasing number. As the value for the key, enter the database table.

t1=DATATABLE

t2=PLMTABLE2

etc.

Start the PARTlinkManager and connect to the database (File [File] -> Connect ).

Select the menu item Extras -> Database -> Edit additional tables.

Select the desired table from the selection list under Select table.

--> The table is displayed in the right half of the window and can now be edited.