DFSORT allows each of the invocation installation environments (ICEAM1-4) to specify time-of-day installation environments (ICETD1–4) with separate sets of installation defaults to be used for runs on specific days and times (for example, from 8:00am to 5:00pm on Saturday and Sunday). You might want to take advantage of this feature to allow, for example, DFSORT to use larger storage values (DSA, TMAXLIM, and so on) for runs at certain days and times.