Event Hacking question

when talking with setzer, i would insert the code to jump to a different bank:
B2 30 02 27

Then i would finish off any code that I deleted to put the jump code in.

Then to add umaro to the party I would follow that up with:
D0 7E D4 ED D4 FD

and in the level editor, set Umaro's even to 1E8F6?

that any where close to right?

Edit:
I'm beginning to think this isn't right. I entered it all and gave it a test run. First error, Umaro doesn't show up on the Blackjack beside Setzer. Number 2, the game froze after the coin toss. I inserted the (D0 7E... after the coin toss)

Close.

Just to verify, that jump will take you to $CA0000+$270230 = $F1/0230, if this is where you put your event, good!

As it turns out, it looks like the programmers already accounted for the possibility of Umaro being in the WoB as he has an NPC already on the Blackjack (and a pink Gogo!). Oddly enough, they use address ranges that are outside of the other event bits. Without going into it, I'm assuming the bits are copied at some point to a new location so leave it the way it is at first, and if Umaro doesn't show up we can try to change his "Show if mem set" address. His Event address has to do with dialog and opening the party selection menu.

I tested it again, without changing anything and still the same to errors: Umaro doesn't show up at all and the game stalls. Background music is still playing, but you can't move at all.

Yes, I did place the code in f1/0230. What do you mean "show if mem set" address?
Do I have to use a different event ID instead of 1E8F6 for him in the level editor?

thanks again