Currently, I don’t believe that there is an activity to set a Transaction status to ‘In Progress’ after pulling a list of them from the ‘Get Queue Items’ activity. Instead we would have to resort to getting the Reference from the IEnumerable then looping the ‘Get Transaction Item’ activity to set those items to In Progress.
It would be more effective to have a new activity that allows a input of type QueueItem or IEnumerable and a Enum for the possible states a item is allowed to be in.
Is this something that the UiPath team is looking to develop for a future build?