One instance may have multiple companies that may be located not very close to each other; works like separate entity. There have been some experiences that if a company do not reset their trucks when they start the day, it raises a few issues so they develop habit of resetting trucks first thing every morning whoever is the first. They rather not to do one by one. And normally , plants restrictions are not enforced for the users so it will have less user maintenance. When one company/area/region reset trucks it affects all companies within instance which causes also issues.
Reset trucks option should have Company, plant range filters.