you can always have a delay variable at the start of the script (or in an .ini, whatever you prefer), and do something like:
;; set delay between lines being sent:
var %delay 0
;; --- bunch-o-code goes here --
msg # blargh1
timer 1 %delay msg # blargh1
timer 1 $calc(%delay + 1) msg # blargh1
timer 1 $calc(%delay + 2) msg # blargh1
Bit rough maybe, but it probably works. Tastes differ. I prefer to keep everything on one line generally, but it depends on the case.