Folders And Songs

Dj-Spinnest

Question 1.

Please am new to traktor, i just bought my new traktor controller S4, but for example When am in my traktor pro 3 software folder that contains my songs or tracks and I go to another folder with different songs or tracks, when i go back to the previous folder it takes me to the beginning as if i just open that folder which i have to align my songs again, it doesn't take me to the previous highlighted songs.
Question 2.

Why can't I cue my songs at anywhere I want but only allow to cue my songs on only the bars?

Question 3.

Why can't the song play automatically when loaded in the deck but unless you push the play button?

Thank you all for your time and please help your brother who's new to the software and hardware.