This is typical of batch processing which has a couple ways to handle.
1) use conditions
Each job has an IN condition (in addition to its own for dependencies). Define a dummy job which runs on weekdays to create the condition immediately new day. Define another dummy job which runs on Sunday to create the condition upon confirmation. Whenever the maintenace is completed, operator should confirm the Sunday job to allow processing.
2) use Quantative Resources
Each job has a QR with 1 unit. The QR has a max value greater than the number of concurrent jobs (typically set to max 9999). Order a job on Sunday to set the max value of the QR to 0 to prevent jobs from starting, and a job with confirmation to return the max value of QR to its original.
If confirmation is earlier than the scheduled time there is no impact. If confirmation is later than the scheduled time, jobs will start later.
Hope this help.
