Chord sequences. Many shortcuts are two-step: press Ctrl+K, release, then press a second key. Ctrl+K, Ctrl+C comments a selection; Ctrl+K, Ctrl+D formats the document; Ctrl+K, Ctrl+K toggles a bookmark.
Refactoring under Ctrl+R. Rename (Ctrl+R, Ctrl+R), Extract Method (Ctrl+R, Ctrl+M), and Encapsulate Field (Ctrl+R, Ctrl+E) all share the same Ctrl+R prefix.
Debugging. F5 starts the debugger, F9 toggles a breakpoint, F10 and F11 step over and into code, the same F-key row IntelliJ-family IDEs use.
Navigation. Ctrl+, opens Go To Anything for files, types, and members; F12 jumps to a definition; Ctrl+- and Ctrl+Shift+- walk backward and forward through recent locations.
Testing. Test Explorer shortcuts share a Ctrl+R prefix with refactoring but a different second key: Ctrl+R, A runs all tests, Ctrl+R, Ctrl+A debugs all tests.