A simple list can accept one or more values of the type specified by the parameter.
For example, if the parameter is for the user name, a simple list means that more than one user name can be specified on that parameter.
USER(JONES SMITH MILLER)
If a parameter's value is a simple list, you specify the maximum number of elements the list can accept using the MAX parameter on the PARM statement. For a simple list, no command definition statements other than the PARM statement need be specified.
The following example defines a parameter USER for which the display station user can specify up to five user names (a simple list).
PARM KWD(USER) TYPE(*NAME) LEN(10) MIN(0) MAX(5) +
SPCVAL(*ALL) DFT(*ALL)
The parameter is an optional parameter as specified by MIN(0) and the default value is *ALL as specified by DFT(*ALL).
When the elements in a simple list are passed to the command processing program, the format varies depending on whether you are using CL or HLL, or REXX.