Increment multiple selected numbers in SublimeText

IncrementNumbersCommand.py

import sublime, sublime_plugin

class IncrementNumbersCommand(sublime_plugin.TextCommand):
	def run(self, edit):
		start_value = int(self.view.substr(self.view.sel()[0]))

		counter = 0
		for selection in self.view.sel():
			self.view.insert(edit, selection.begin(), str(start_value + counter))
			counter = counter + 1

		for selection in self.view.sel():
			self.view.erase(edit, selection)

User.sublime-keymap

[
	{ "keys": ["ctrl+shift+."], "command": "increment_numbers" }
]