VocabularyShop allows maximum 5 users to use the same program, excluding the Default_User. You should create your own user account and always work under that account. You can use the Default_User account as your account. However, you will need to replace all words with your selection of words.
When VocabularyShop starts, the current user name will appear on the lower part of the program home page. You should switch to your account if the current user is not you.