SecureCRT > Options > Global Options > General > ****Default Session > Select the Edit Default Settings button:
log file name:
\%Y\%Y-%M\%Y-%M-%D\%S (%H) -- %Y-%M-%D_%h-%m.txt
options:
点中:Start log upon connect 和 Append to file
Custom log data：
Upon connect: Start recording %S (%H) - %Y/%M/%D %h:%m:%s
Upon disconnect: Stop recording %S (%H) - %Y/%M/%D %h:%m:%s
on each line: %h:%m:%s.%s §
点击ok
应用到所有的session undo