@irwuwei
i've explained how to find jump and zoom offsets several times in some threads, while values for searching fly os are different for each class about +1 or +2 , check smurfit source code, there should be a value for it somewhere at flyhack function.
rapidkeysend is handy for most cases, if you have more than 2 chars you can use it together with autoaim ldr's target to assist attacking mobs selected by leader [main char or char which you control manually]. You can fill it with more than one key like 123456, this will keep sending keypress 1, keypress 2..and so on. Or you can simply use it for auto attack while you target mobs manually. At first I use it mainly for healing continuously when fighting boss, but later i add iNurse and find it useful for other things. Just want to add what you can use with rapidkeysend if you haven't already noticed. There are some other things you can make use of it though, for example having a stall and then create a priest char for continuously healing your stall to attract people lol.
for the autofollow or using manual follow hotkey, i dunno why it sometimes won't work for other system, it works ok on my main pc, but it won't work on my other pc, i suspect it might be because i'm using a native desktop res at 1440x900, which is a rather new standard for 19 inch monitor, but i dunno for sure since it should work in theory because it detects the specified client window's resolution and send some mouse clicks at fixed locations there, not based on desktop res.
char command is for remote sending a keypress to a char targetted by leader, for example i have 4 chars, i can order them to mount on pet ride from leader window, or give buff, or fly.
to disable wh maybe you can try editing pwgtm.ini file and leave the hotkeys empty, haven't tried it myself though, should be able to make it off that way. I agree it's buggy sometimes for north south west east direction, but it always works for up/down, you can go up first before going to other directions, it'll mostly work.