Thank you for your kind respond....
The introduction is very help, but as I am really running out of time for my project.
if you can kindly teach me how to extend the time ruler from 30s to 1.30, that would be even more helpful.
Thank for your attention.....
Go to the composition settings and change the length.
Mylenium was NOT joking about learning the basics. Blow them off at your peril.