how do u make a spwn point in a TD

how do u make a spwn point in a TD

someone who has made a TD pls help me get the spawn points and other trigger info

start with making a rect where u want the units to be spawned

go to trigger editor and use the function: unit - create units, after that order them to move to a rect

a trigger i do (for my td) orderin units is


event: unit enters region (the spawn point)

cond: triggerin unit = owned by player 1 red (enemy spawn's player)

action: units-->order unit in region (spawn) to move/atk move (whatever) to region (end area)

Hope this helps btw my td is called
SCOURGE KILLER TD v1.00b
im requesting some testers

example map

Heres a TD that my friend Glumeon made when we were both trying to figure out how people were making the cool TDs. Its pretty good as a first map, i wish i could find mine but this is probably a better map. Its got all the stuff to create a simple TD with unit spawns, level timers, towers, different races for builders and of course number of lives remaining. This is only 4 player but im sure it could be easily expanded to more. Im not quite sure what the boot functions are for, but anyway. yea map credit goes to Gluemeon.

http://www.wc3sear.ch/?p=Maps&ID=8123