This feature allows to open multiple machine with the quick connect in Remote Desktop Manager
Check the option Allow range open in File - Options - User Interface - Quick Connect
This range function requires that a sequenced number is at the end of the same name for all the machines like this list: devolutions08, devolutions09, devolutions10.
Use this syntax in Quick Connect: MachineNameX~Y
For example: to open the machines devolutions3, devolutions4 and devolutions5 you would write devolutions3~5