Here is a simple plugin to "open / close a splitter" into the current file, as found in other editors:
import sublime_plugin
class SplitPaneCommand(sublime_plugin.WindowCommand):
def run(self):
w = self.window
if w.num_groups() == 1:
w.run_command('set_layout', {
'cols': [0.0, 1.0],
'rows': [0.0, 0.33, 1.0],
'cells': [[0, 0, 1, 1], [0, 1, 1, 2]]
})
w.focus_group(0)
w.run_command('clone_file')
w.run_command('move_to_group', {'group': 1})
w.focus_group(1)
else:
w.focus_group(1)
w.run_command('close')
w.run_command('set_layout', {
'cols': [0.0, 1.0],
'rows': [0.0, 1.0],
'cells': [[0, 0, 1, 1]]
})
Save it as Packages/User/split_pane.py and bind it to some hotkey:
{"keys": ["f6"], "command": "split_pane"},
If you want to change to vertical split change with following
"cols": [0.0, 0.46, 1.0],
"rows": [0.0, 1.0],
"cells": [[0, 0, 1, 1], [1, 0, 2, 1]]