Cut, Copy, Paste, and Clear work with text or time entries.  Pasted time entries are always appended to a TimeTracker document.

Select All either selects all time entries or selects all the text if you're working with text.

Unselect All unselects all time entries.

Time Entry… brings up the window described in the “Edit Time Entry” chapter.

Preferences… brings up the Preferences as described in the Preferences chapter.