Configure where new windows should be added and which window should be focused.

You can use this module by importing it in your xmonad.hs:

import XMonad.Hooks.InsertPosition

You then just have to add setupInsertPosition to your main function:

main = xmonad $ … $ setupInsertPosition Master Newer $ def { … }

Alternatively (i.e., you should not do this if you already have set up the above combinator), you can also directly insert insertPosition into your manageHook:

xmonad def { manageHook = insertPosition Master Newer <> myManageHook }

NOTE: You should you put the manageHooks that use doShift to take effect before insertPosition, so that the window order will be consistent. Because ManageHooks compose from right to left (like function composition .), this means that insertPosition should be the leftmost ManageHook.