Request to slightly improve add grid way point comand

[ChaosSlayer]

Greetings!

curently adding grid way points uses following format:

#wp add X Y Z

where X is grid id#, Y pause time, and Z is wp id#

what i propose is to slightly modify this so if Z is omited, the comand will automaticly use curently max Z+1.
this will GREATLY improve easiness of adding new way points.

so instead of running around and typing

#wp add 71 60 1
#wp add 71 60 2
#wp add 71 60 3
#wp add 71 60 4
etc etc etc till my fingers bleed

i will make a hot button with
#wp add 71 60

and span simply spam it at will

alternatuivly if comand line does not work with omited parameters, let say if i use MAX keyword at the end of the line it will auto calculate Z+1 like this:
#wp add 71 60 max

thanks =)