You should write a script which opens a tcursor on the table, then reads in the number of records, and then repeats this number of times the insertion of another record using another tcursor on the same table.
You sholud then, just before saving each new record, generate another ID for the new record , for example by using CMAX function on the second tcursor;
Otherwise, you can duplicate the table with a different name, and alter it to make the ID field autoincrement, and then the procedure i described can be done without setting the new record ID, since it will be autogenerated by pdox.