Please note, the list of all fields you can map is far greater, and can be found in the mappings step during your import.
If you have any questions on a particular mapping, feel free to chat with us and we can walk you through it!
1. Board name is an open text field, so you can import any value you want to appear here.
2. Organization is a lookup field, meaning that it refers to an actual organization in your Trello account. You'll want to ensure you have value(s) in your CSV column here which correspond to a valid organization setup in your Trello account.
3. Card Cover Images Enabled is an example of a true/false (i.e. "yes" or "no") field. You need to indicate true or false in your CSV column in order for this field to be mapped correctly.
4. Commenting Permissions is an example of a picklist field. You must have the same list of options setup in the field as those that exist in your CSV file in order for the mapping to work. The same logic applies for any other picklist fields you wish to map on the Board.