keybindings for sublime text 3

sublime-keybindings.txt

[
    // Auto-pair backticks
  { "keys": ["`"], "command": "insert_snippet", "args": {"contents": "`$0`"}, "context":
    [
      { "key": "setting.auto_match_enabled", "operator": "equal", "operand": true },
      { "key": "selection_empty", "operator": "equal", "operand": true, "match_all": true },
      { "key": "following_text", "operator": "regex_contains", "operand": "^(?:\t| |\\)|]|\\}|>|$)", "match_all": true },
      { "key": "preceding_text", "operator": "not_regex_contains", "operand": "[`a-zA-Z0-9_]$", "match_all": true },
      { "key": "eol_selector", "operator": "not_equal", "operand": "string.quoted.single", "match_all": true }
    ]
  },
  { "keys": ["`"], "command": "insert_snippet", "args": {"contents": "`${0:$SELECTION}`"}, "context":
    [
      { "key": "setting.auto_match_enabled", "operator": "equal", "operand": true },
      { "key": "selection_empty", "operator": "equal", "operand": false, "match_all": true }
    ]
  },
  { "keys": ["`"], "command": "move", "args": {"by": "characters", "forward": true}, "context":
    [
      { "key": "setting.auto_match_enabled", "operator": "equal", "operand": true },
      { "key": "selection_empty", "operator": "equal", "operand": true, "match_all": true },
      { "key": "following_text", "operator": "regex_contains", "operand": "^`", "match_all": true },
      { "key": "selector", "operator": "not_equal", "operand": "punctuation.definition.string.begin", "match_all": true },
      { "key": "eol_selector", "operator": "not_equal", "operand": "string.quoted.single", "match_all": true },
    ]
  },
  { "keys": ["backspace"], "command": "run_macro_file", "args": {"file": "res://Packages/Default/Delete Left Right.sublime-macro"}, "context":
    [
      { "key": "setting.auto_match_enabled", "operator": "equal", "operand": true },
      { "key": "selection_empty", "operator": "equal", "operand": true, "match_all": true },
      { "key": "preceding_text", "operator": "regex_contains", "operand": "`$", "match_all": true },
      { "key": "following_text", "operator": "regex_contains", "operand": "^`", "match_all": true },
      { "key": "selector", "operator": "not_equal", "operand": "punctuation.definition.string.begin", "match_all": true },
      { "key": "eol_selector", "operator": "not_equal", "operand": "string.quoted.single", "match_all": true },
    ]
  },

  // Mimic RStudio shortcuts
  // Ctrl-alt up/down duplicates lines up or down
  { "keys": ["ctrl+alt+up"], "command": "select_lines", "args": {"forward": false} },
  { "keys": ["ctrl+alt+down"], "command": "select_lines", "args": {"forward": true} },
  // Alt+up/down moves a line up or down
  { "keys": ["alt+up"], "command": "swap_line_up" },
  { "keys": ["alt+down"], "command": "swap_line_down" },
  // Cmd+alt+down duplicates the current 
  { "keys": ["super+alt+down"], "command": "duplicate_line" }

]