I have a spreadsheet I dump from a client's management program that I want to import into project management on jira, however, I want to use a specific column as the Key (Project ID from client) but when I try and import it keeps complaining that there is no dash - and I don't want to use a dash for the key. Also, I want to be able to update certain fields the client changes and use the Key (Project ID from client) such as dates certain items have been completed from either our client, or other vendors.