When viewing a script, which has parameters in it, in VuGen, the Add row, Add column, etc. buttons are disabled.
This is because the parameter data file has more than 100 rows but the parameter data file has a limit of 100 rows
The Add row, Add column, etc. buttons under the Parameter properties in VuGen are disabled if there are 100 or more entries in the parameter data file.
However, more rows or columns can still be added or deleted by editing the file in Notepad and will be considered for parameterization purposes when running multiple Vusers.