Variables can be reset en masse in the variables and questions tab, however, if one were to add nets to multiple tables, each table would need to be reverted individually.
The client ran into the problem of using the template for replication on tables that already had table modifications (i.e. nets), and couldn't update the netting structure en masse by using the template for replication because the tables the client wanted to affect already had some modifications - which throws an error. An easy solution to this problem would allow resetting table settings en masse.