Hello!

It's hard to explain. For example, when I record some guitar part, and I want to delete the end, to match with the rest tracks(drums etc.), I must always to zoom in, for cut it perfect, and with the ctrl key I delete the unwanted parts. Can I somehow make it easier, that I don't have to zoom in, and just cut it easily?
To be clear, here is picture, how can I easily cut the first track, that the recorded part ends at "45".
When I try to delete, that it ends at 45, then it will alweys before 45, or after 45...
Sorry for bad expalnation.

 

Is this what you need?
https://support.apple.com/kb/PH13026?viewlocale=en_US&locale=de_DE

 

You have Logic set to smart snap. If you want it to trim at bar etc you can set it to snap to that, looks like you might lose the end of your vocal notes sustain if you trim it there though.

I tend to leave it on smart snap, navigate with < & > keys to move cursor by bars and trim at cursor (think its cmd & T by default although mines set up differently)