I have a good quantity of Pipe programs and here are three of them that may suit your needs and you can find more when exploring the website.
1- Water Supply Program.
2- Fire Fighting Program.
3- Fire Fighting Grooved and Threaded Program.
Unfortunately "qlattachset" is obsolete, and although you can still type the command as it is in the "leaderex.arx" file, it does nothing.
I should have something working by tomorrow afternoon that will associate the mtext with the leader, and then convert the Leader to a Mleader.