Would it work to have the job group repeat (on the schedule tab) multiple times per day?
In answer to a question about making a job group 'loop', tdonmoyer gave the following suggestion which migh work for you.
Just allow the job timeout and the status change to normal, then let the rest of the jobs complete.
Have a job event run the job group again when the last job in the group completes.
tdonmoyer about a month ago
1) Create a Job Action to insert the job group
2) Create a Job Event to run the Job Action when the job completes normally
3) Add the Job Event to the job group or the last job to execute in the group. When the job group completes normally it will trigger the Job Event to run the Job Action and insert a new instance of the job group.
1) Create a Job Action to insert the job group
2) Create a Job Event to run the Job Action when the job completes normally
3) Add the Job Event to the job group or the last job to execute in the group. When the job group completes normally it will trigger the Job Event to run the Job Action and insert a new instance of the job group.