If you are playing in a sandbox scenario, there is no way to bring up the colony's GUI. No matter what you do - transferring items from storage, picking them with your cursor - nothing seems to update it.
This is not really a problem in a solo-mod scenario, but it makes it semi-incompatible with the Brave New World mod, where you play without body, only with robots and automation - almost like a sandbox, but without the cheating aspect.
An easy fix would be to add a shortcut button that updates / brings up the colony interface, I suppose.