A lot of these triggers can be made by using common sense. I suggest you make a test map, where you make 1 command (Events, Conditions and Actions) for each Event/Condition/Action there is, and check out what they do. Then you can use your imagination to make basic of triggers by yourself. After a while, you'll find new combinations of commands that can give you access to more advanced triggers. Just practise with a test map, and you'll get very far.