The sub-menu action Default call command for library elements
is available for library elements of type J and performs the default command
/CALL-PROC FROM-FILE=*LIB-ELEM(...).
The sub-menu action Default call command for simple files
is available for simple files and performs the default command
/CALL-PROC FROM-FILE=....
The /CALL command and the SYSOUT of the called procedure is logged to the
Console
view.

/CALL-PROC FROM-FILE=... PROCEDURE-PARAMETERS=(...) in the BS2000Terminal.
Only one procedure can be running at the time. Terminal disconnects automatically, when the procedure ends.
The action displays pop-up where procedure parameters can be provided. Procedure call with parameters dialog allows to enter procedure parameters in two Input modes. Switching between modes is done using radio buttons on the top.
In the Plain text mode, the parameters may be provided as a text, following the pattern: param=value,param2=value2. Spaces and new line characters are allowed. The provided and confirmed output will be saved for further procedure calls. The last provided inputs are available from the Input history dropdown below.

In the Parameters Table input mode, the procedure source code is parsed to find parameter declarations. All found parameters are placed to the table. Values of the parameters must be provided into the Value column cells. The input values are saved to the history. In the further parameter calls, recent values of the parameters will be suggested when started typing.
The greyed-out values represents the initial value of parameter. In the right panel there are printed all the details of selected parameter.

You can alternatively use key shortcut CTRL + SHIFT + P to quickly select recently called procedures:
Furthermore procedures can be provided to run tests.
Window > Preferences > BS2000 Remote IDE > RemoteProcedure Call.
Here is the default contents of the Remote Procedure Call preference page:
For a call command you can customize the Exit Codes in the Create/Edit Call Procedure Command page. With the Edit Exit Codes button you can specify
When the execution of a call command fails, in the Problems View a quick fix is available to add the received exit code to the list of Success Exit codes.