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Change all course combination's Default Academic Block type to 'to spread things out' by using a batch edit and enable any disabled cc's. In the Course Combinations along left side. Usually given to scheduling to handle
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Usually can be done in the break between creating the database part 1 and part 2:
Detach any instructors from blockoffs Level 1, 2, 3 (don't delete blockoffs - just remove instructors to maintain shells)
*Two ways to do it - from the blockoffs or from instructors*
Ensure that all instructors have no "customized constraints"
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