This knowledgebase aims to explain everything there is to know about Timespace. It is very much a work in progress and its driving force are questions asked by users. So if you can't find what you are looking for, ask in the support chat or by sending mail to firstname.lastname@example.org. We'll help you and then add documentation for others to see, too.
The easiest way to approach Timespace is through activities. They can be created in the Timespace Hub. To better understand activities, read the article What is an activity?
A key concept of Timespace is focus. When focused, Timespace connects to your apps to gather and attach content that you create. It can only do so if you have first allowed access to it. This can be done in your user settings and the FAQ explains this in more detail.