To keep the spacing, put the multiple lines into a text file, and /play that. /help /play. If you use topics in the text file you can have 1 file for different responses, using /play -t<topic> .....
You could also put it on a timer so you dont' have to enter the multiple lines:
/timer 5 1 /msg $chan poke
that will send the poke text to the room 5 times with a 1 second delay u can always change it around you could enter a 0 but just because it pops up on ur screen that fast doesn't mean it does on others. Servers always have at least a 1 second delay in messages so its not flooded.