In the "Save JCL Parameters" panel, the "DSN to Save JCL to" field has become corrupt and greyed-out, so I can't correct it.
This panel had been working until recently, when I happened to have CANCELed a process when I was in this window. (Basically changed my mind about cutting a job - wanted to go back and fix something first.) Since then, when the panel opens, the field contains garbage (i.e. unprintable chars), and is greyed-out so I can't replace the garbage with the correct dataset name. (It should be a PDS, if that matters)
Have looked through the 0 Options menus looking for somewhere to override this, and scanned the manuals, but can't find anything for this.
Error has continued for last few days, despite exiting/re-entering Optim, logging off my session, etc.