Question: Move finished child items to "Ready" status (at the end...)

I organize my work in swim lanes (like finance, administration, staff, …) and within a swim lane in "cards", which actually are items. This prevents having too many swim lanes and loss of overview. In many cards there are multiple child items which get worked on and end up begin finished. Is there an easier way than to manually move them to the most right status ready? So basically moving them automatically from the item as child item to the done of ready status at the far right?

Many thanks in advance….