Flex duct: 1-line Representation

I just had one of the AUGI members ask how I got my flex duct to represent 1-line. I could have sworn that I had a blog post on this, but did not find one. So, here we go! :) I will preface this with: use a practice drawing first to try these changes out on first. You will need to verify that any changes that I am suggesting do not affect other settings in your drawings. Once you are pleased with the settings then you can set them in your existing and/or template drawings. We are using the MEP display configuration for all of our HVAC work at this time. You will need to make the changes to your display configuration that you have set for your ductwork drawings.

Hopefully this helps!

To get the flex duct to show as one line and to hide when it goes under other ducts/pipes follow this procedure:
When the label comes in for the flex duct the line runs thru it so you will have to erase the label for the flex duct after it is dropped in.
There is no known way to keep the label on for the rest of the ductwork and off for the flex duct. NOTE: the flex will not break/hide when it crosses more flex duct. Also once the flex duct is connected to a duct and to a "real" diffuser connector you can no longer manipulate the flex, you must move the diffuser or main duct and that will in turn relocate the flex.
We are using the MEP Design set as the display config.
Go to MODELSPACE to make these changes:
Format/Display manager/Sets/MEP Design-Plan
Scroll down to "Duct Flex" and check ONLY "Plan".
Format/Display manager/Representation by Object/Duct Flex/Plan
Turn everything OFF except "CL" and "CL Hidden"
Change the line types for CL to Hidden, and for CL Hidden to Hidden2

IF you wanted to have the label hide the line you can follow this procedure:
When using these settings the line will not hide when it goes under duct/piping. This is just in here for reference.
Go to MODELSPACE to make these changes:
Format/Display manager/Sets/MEP Design-Plan
Scroll down to "Duct Flex" and check ONLY "1-line".
Format/Display manager/Representation by Object/Duct Flex/1-line
Turn OFF "CL" and "Anno", keep everything else ON.
Change the line types for Contour to Hidden.