Press the green flag to start. It will show the text box used for adding another item. Only numbers 1-9 are allowed, you cannot use 0 as I used that for a seperator. Character limit is 12 characters max. List automatically updates every 10 seconds. Approximately 853 values can be stored using this method (12 characters divided by 10,240, which is cloud variables' max storage.)
This is a just a test, a functional, working test, but a test nonetheless. This uses a cloud variable and a seperator to add values onto a list. Well, there are better versions out there, can be found by searching "Cloud list" onto scratch. Ah well, at least this was fun.