What it says on the tin. It would alleviate some of the busywork of queuing things up on a limited number of workbenches (especially an issue early game when it's less likely to large workshops with a zillion benches in them), so once a queue is complete one could just left click on the completion notification to open the workbench that just finished its production, and thus be able to immediately queue something else without having to manually hunt down the relevant production work bench and navigate the menu structure again (if this is what it's already supposed then I guess I found a bug?).
