[Koha] Clarification sought on koha-create options

Hello! I'm interested in learning more about the following options for the command koha-create: --defaultsql some.sql Specify a default SQL file to be loaded on the DB. --configfile cfg_file Specify an alternate config file for reading default values. Could these be used in the creation of an instance that is essentially a clone of another one, for which koha-dump was used with the option --without-db-name? I'd like to have a smooth way to create instances in which our librarians can experiment with ideas and features. Thank you!