Ok In depth guide for the 99% range hit
1) Open the mabinogi start-up page and rPE
2) Hit game start and go back to rPE-> Select Process-> Open Process-> select Client.exe
3) Log in normally
4) Select your target, whether it be a monster or another player
5) Go back to rPE and hit start
6) Hit them once with range
7) Go back to rPE and hit stop
8) Now scroll through the box that SHOULD have opened up in rPE looking for "34" in size and "WS2.0 SEND" in function
9) Right click it, and hit send
10) Now another box should have opened up
11) Hit continuously, and then, in the timer box put anything from about 150-300 depending on your latency. Click get ID in the socket ID box and hit send
12) You can either load range or arrow revolver. If you chose a person, you'll hit them as soon as they get up. You can also use magic or melee and again, you'll hit them as soon as they get up. If you chose a monster, I suggest to switch between mag and range or use magic.
For Multi-targetting
Basically, just do the same thing except instead of hitting send on the "Send a Packet" page, hit add to sendlist and do the same thing. You can put multiple of them, check them off and done.
Shutting down
If Mabi closes or rPE closes while the other is still open, you have to close the other and open it again. No idea why, just do it