key map sublimeREPL commands in Sublime Text 2 - sublimetext2

Question

I'm trying to map keyboard shortcuts for SublimeREPL plugin commands. Looking at SublimeREPL it looks like a menu item command is defined as:
Default.sublime-commands
{
"caption": "SublimeREPL: SBT for opened folder",
"command": "run_existing_window_command", "args":
{
"id": "repl_sbt",
"file": "config/Scala/Main.sublime-menu"
}
}
or in
Main.sublime-menu
{"command": "repl_open",
"caption": "SBT for opened folder",
"id": "repl_sbt",
"mnemonic": "b",
"args": {
"type": "subprocess",
"encoding": "utf8",
"external_id": "scala",
"cmd": {"linux": ["sbt"],
"osx": ["sbt"],
"windows": ["sbt"]},
"soft_quit": "\nexit\n",
"cwd": "$folder",
"cmd_postfix": "\n",
"extend_env": {"osx": {"EMACS": "1", "PATH": "{PATH}:/usr/local/bin"},
"linux": {"EMACS": "1", "PATH": "{PATH}:/usr/local/bin"},
"windows": {"EMACS": "1"}},
"suppress_echo": false,
"syntax": "Packages/Scala/Scala.tmLanguage"
}
}
I've tried making a keybinding in my SublimeREPL.sublime-settings to:
[{ "keys": ["super+shift+k"], "command": "run_existing_window_command", "args":
{
"id": "repl_sbt",
"file": "config/Scala/Main.sublime-menu"
}
}]
But when I try to use it the Sublime console just says:
no command for selector: noop:
Same if I map it to:
[{ "keys": ["super+shift+k"], "command": "repl_open",
"args": {
"type": "subprocess",
"encoding": "utf8",
"external_id": "scala",
"cmd": {"linux": ["sbt"],
"osx": ["sbt"],
"windows": ["sbt"]},
"soft_quit": "\nexit\n",
"cwd": "$folder",
"cmd_postfix": "\n",
"extend_env": {"osx": {"EMACS": "1", "PATH": "{PATH}:/usr/local/bin"},
"linux": {"EMACS": "1", "PATH": "{PATH}:/usr/local/bin"},
"windows": {"EMACS": "1"}},
"suppress_echo": false,
"syntax": "Packages/Scala/Scala.tmLanguage"
}
}]

Answer 1

Your first keybinding is correct and should work as expected. Place is in Preferences -> Key Bindings - User file.
[{ "keys": ["super+shift+k"], "command": "run_existing_window_command", "args":
{
"id": "repl_sbt",
"file": "config/Scala/Main.sublime-menu"
}
}]
based on your description, I suspect that some other command is hijacking super+shift+k.
>>> sublime.log_commands(True)
will let you see what's get called when.