By default, your hand is sorted automatically to create Melds and separate your Deadwood. If you would like to sort your hand manually, look for the “Auto Sorting” option in the Settings. This option can be set to either sort “All,” “Melds,” or “None.”
The setting is set to “All” by default, where everything is sorted for you
When set to “Melds” you can shuffle around your Deadwood and automatically group Melds for you
When set to “None” you will need to drag cards together to create new Melds yourself