Contextual functions: Functions can only be selected if they can be used in the current context. Otherwise, they are grayed out or are not displayed at all. Most functions are contextual.

To use them, you must establish a reference to a folder or document by selecting it. Once you have selected an entry, click the function. In most cases, this opens a dialog box or another control element with instructions on how to proceed.

Non-contextual function: Some functions are not contextual and can be used at any time. These functions are not related to selected entries. Refresh is an example of a non-contextual function.