Hello,
I think you were looking at the correct message of 2 years old. This “Do you want to terminate the current tool job?” message appears because the previous external tool job has not been finished before you try to start the next external tool job. If you can’t finish the previous job, you can disable this message by adding the following registry key:
HKEY_CURRENT_USER\Software\EmSoft\EmEditor v3\Common
PromptTerminateJob
REG_DWORD: 0
Thank you!