With this type of data, you can choose the number of lines each entry in the column can contain. Don't Wrap box to force the contents to display on a single line. Click the button at the right end of the entry to get the eRoom editor for formatting text. If you are using just your browser, you can use this format for plain text only. Number is for numbers, and also allows related characters such as currency symbols, commas, and decimal points.
Date is for dates.
List is for creating a pop-up list of possible choices for a column. Type one choice per line in the text box. The list appears for that column when you edit an entry. Members is for the names of eRoom members, which you add from a pop-up list. Click the Allow Multiple Choices box to control whether the column can contain just one name or many.