Shortcuts
UI
⌘⌥T Close all tabs except current
⌘⌥→ Go to right (left) tab
⌘⇧E Open project explorer
⌘R Toggle right sidebar
⌘B Toggle left sidebar
Basic editing
⌥↑ Move line up (down)
⇧⌥↑ Copy line up (down)
⌘↵ Insert line below
⇧⌘↵ Insert line above
⇧⌘\ Jump to matching bracket
⌘] Indent line
⌘[ Outdent line
⌘/ Toggle line comment
Multi-cursor and selection
⌥• Insert cursor
⌥⌘↑ Insert cursor above (below)
⌘U Undo last cursor operation
Search and replace
⌘F Find
⌥⌘F Replace
⌘D Add selection to next find match
⌘K ⌘D Move last selection to next find match
Settings
Here be dragons.