This will show a text or link about the terms and conditions depending on the setting in the next param
A link will be shown to the customer pointing to the article
containing the terms and conditions. On clicking, a popup will
open and the contents of the article will be displayed
A checkbox will be show along with the link
Create a K2 item with the terms and conditions and enter its ID here. When customer clicks the terms and conditions link during the checkout, he will be shown the content of the item
This param is related to the payment plugins. After customer places an order, you can show a custom thank you message. The message can be entered in an article and the ID of that article should be entered in the relevant payment plugin. See the payment plugins documentation for more information about this.