Help with 5 SMILE things

[pathomSM]

I just recently completed my first hack Super Metroid Impossible Redesigned but I was not able to understand a few things with SMILE.  Can someone tell me or point me in the right direction to understand these things below?  I would like to make a 2nd hack that is larger and uses the things below.

1) Adding custom music
2) Changing the map
3) Creating doors and pointers to old and new rooms
4) Adding new items into the game like for example Spider Ball, Phazon Suit, etc. (and changing the equipment screen)
5) Camera fixes and transitions to follow Samus.


Any help even on only 1 of the 5 would be appreciated.  Thank you!

[sm cory]

2 & 3 & 5 could be done with smile. But the others, time to learn the games coding through a hex editor! I started learning how to figure out where room data was first...
Here look through this a lil bit,it gave me a very good direction =http://www.metroidconstruction.com/SMMM/#background-pointer

[MetroidMst]

As far as question 2 is concerned: [spoiler]https://youtu.be/QnSz_CuABMo[/spoiler]

As far as question 3 is concerned: [spoiler]https://youtu.be/QVxdtLCq2wQ[/spoiler]

As far as question 5 is concerned: [spoiler]https://youtu.be/K3RR-z-rceM[/spoiler]