When configuring an Execution Server to connect to a Scheduling Server, no Change button appears in the Test Studio Test Runner GUI.
Update Client Config File
1. Open the Test Studio Scheduling Client configuration file at: C:\Program Files (x86)\Telerik\Test Studio\Bin\Telerik.TestStudio.Scheduling.Client.exe.Config.xml
Please note that as of version 2017 R3 the default installation path for new installation is C:\Program Files (x86)\Progress\Test Studio.
2. Change the EmbedExecutionManager value to false.
3. Close the Test Studio Test Runner process from the System Tray.
4. Run the Start Execution Manager application from the Start Menu.
5. Open the Test Studio Test Runner GUI from the System Tray.
The Change button should now appear on the right.