I'm new to both rom hacking and this forum.  Thank you to everyone who has paved the way and developed all these utilities!!

For my first hack, I am using the original RBI baseball for NES.  After I put an image back together in the Tile Arranger (say a Right Handed batter), is there anyway to save where I found these tiles, like an offset or something?

Also, I've read that NESticle had the abiltity to edit graphics inside the emulator, so you could see the changes instantly.  Are there any current emulators with a similar feature?  Right now I use NESten, and I'm very happy with it.

thank you in advance for any help!
steve