How do I set sublime text 3 columns to resize automatically on focus?

Question

I'm not sure if this is even possible, but here goes.

I want the column I'm currently working in to take up, say, 50% of the screen (I'm talking 3 column layout). But to grab the mouse and manually adjust the column width every single time I change working column is a pain.

How do I set things up so when I shift from column 1 to column 3, column 1 gets reduced from 50%->25% screen space, and column 3 goes 25%->50% (column 2 stays 25%)?

I'd love any help or even half solutions if possible. You may also tell me it's impossible, though that'll make me very sad.

Answer 1

The answer was the Origami plugin. By setting "auto_zoom_on_focus" : 0.6, in my user settings after installation, I now have the lovely auto re-sizing I desired :)

Edit: Thanks to @user10065308 for update on correct flag.