Subtask 1

Your first step is to copy a sequential data set into a member of a concatenated PDS.

Traditional ISPF

Use the 3.3 Move/Copy Utility.

Workplace

Use the Copy Action against the sequential data set object.

Choose the Workplace option (Option 11) on the main menu. Use the PF11 key to toggle to the data set view. In the Workplace you have a choice of working from a data set list or issuing commands against a single data set.

If you are list-oriented you can specify a wildcard character in the Object Name field (such as, 'USERID.*') to generate a data set list containing the sequential data set.

If you prefer to specify the sequential data set directly you can type it into the Object Name field either with or without single quotes (that is, SEQ.FILE or 'USERID.SEQ.FILE').

In either case these accelerated methods can be alternatives to remembering and typing the input:

You might be able to retrieve a recently referenced data set name or pattern from the REFLIST in the bottom half of the Workplace.
You might be able to retrieve a recently referenced data set name or pattern using the recall key PF5.
You might be able to retrieve a data set name or pattern from a personal list you previously created. These also appear in the bottom half of the Workplace.

Now that the Object has been specified you must specify the Action. In this example, the action is COPY. You can do this several ways, depending on your preferences.

If you are in a list, you can use the CO line command to copy the data set, or you can put a slash (/) in the line command field to be prompted with a list of available commands to select.
If you specified the "from" data set directly (not from a list) you can use the Copy option from the File action bar choice, or you can type the C fast path command in the Action ==> field to copy the data set.

In either case, a pop-up panel prompts you for the target data set, member name, and other parameters.