Can I apply this to mouse actions?

[nathan323]

In Default (Windows).sublime-mousemap:

`{
         "button": "button1", "count": 1,
	  "command": "chain", 
	  "args":
	  {
	    "press_commands":
	    [
	    	[
	    	  "drag_select",
	    	],
	    	[
	    	  "hide_overlay",
	    	],
	    ],
	},
},`

I tried the above with press_command (the usual syntax in .sublime-mousemap), instead of command, still didn't work. Is there any way to modify the .py file to include mouse support?