Draw pipe with SSDCP?

I finished drawing some pipe wall rail and, at the end of the program, it said that if I wanted to draw the polyline as a pipe I had to choose Block
E-21 or pick bevel lines, then pick the line width. Where is Block E-21? Can someone describe the process of changing the line within the bevel lines/line width command? Is there anyway to pick pipe and the program will just draw it automatically or do I have to physically draw it on the screen. Any help would be appreciated. Please be specific as I am just starting to learn this program and am somewhat stupid at the moment. Thanks, Carolyn
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.