## Presentation Device Driver Reference for OS/2

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### Command Language Presentation Manager Panels

During the final stage of DSPINSTL, each data chain element will trigger a separate DSPINSTL Command Language interpretation step. One of these PM panels will allow the user to optionally override the source directory that will be used for that step. Another panel will prompt the user to insert an appropriately labeled diskette. The remainder of the PM panels will prompt the user when execution errors are encountered during this final portion of DSPINSTL execution.