For myself, I just hit the '-' a lot (or hold it down for autorepeat).
It doesn't take as long as you would expect. The "hardest" part is getting the text to fit on branches if the name is too long.
And once you've entered one rung, cut and paste goes a long way to building the next rung.
I briefly looked to see if my old copy of AI could generate rung ASCII, since that's how it prints, but it was more trouble than it was worth.
Remember, suranjan, to always put the text
[LADDER] before drawing a rung in ASCII, and
[/LADDER] after the rungs. If you don't, the font will be a proportional font instead of fixed, and any multiple spaces will become single spaces, which will destroy the alignment.
Go to the
Practice Posting Here forum to test your skills. Also, if you see a post and you wonder
"How did they do that", click on the word
Quote at the bottom of their reply, and you'll see the raw post with all the original vB tags.