+1 Can be beneficial if you repair one siege and the other is damaged too, but if storehouses get repaired it's waste of time. But having one or two units in this repair mode would be kind of nice in general. But if it matters to you setting the repair in queue is also not too much apm intensive.

Shocker.   Although I agree it’s a waste of time I could care less how this function works 

Thank you very much for the explanations. I ended up uninstalling and reinstalling the game to get it back to normal haha. Now you can try modifying the layout and adjusting a few things again. Thanks for the help, and I'll come back and share the results later =D

For me it's good how it is currently. The advantage is that units will be shown as idle after repairing, instead of doing more repairing. Repairing can be a waste of time.

No, I feel like I remember this too. I think even when you were building something, workers would go repair nearby building once done too. Not so long ago then, I joined in a26.