Array of string to send with TX int ?

[mister_e]

Well you definitely don't need any array to do that, it sucks way too much RAM for absolutely nothing. What I feel you should do is a kind of template
Header
extrastuff
footer

send the header, then the extra stuff and finally the footer. A flag for each part sent should do the trick... At least, from what I feel.

And still, it shouldn't be faster than a couple of HSEROUT line... but more flexible if you're using asm DT/DB/DATA/DA.

I'll continue to follow this thread, it's interesting while I'm not sure I still understand the requirement