rvbinder

I just noticed that the KB says the Feature is "preimier" so, is it that I can't do this with my version of HDP?

Also, I checked the help file for "Block" etc.  It says "3. Click the Make Architectural Block  edit button." But after selecting all lines, no such button shows.  See attached.

I want to use half-round gutters, like http://www.slateandcopper.com/gutter/half-round-gutter

Following the instructions in 

https://www.chiefarchitect.com/support/article/KB-00677/drawing-a-custom-gutter-molding-profile.html

I produced a plan with CAD drawing of the gutter section, to scale. The edges are the best I can do, because the line segment select/edit function jumps to a snap point that I don't want. It is probably close enough. 

The KB note says "With the profile selected, click the Add to Library  Edit Toolbar button to add it to the the Library Browser,"  NO SUCH BUTTON.  Yes, I have looked and RTM.

My questions:

How can I more accurately draw the edges?

The note says "Rename the molding" after using "profile" up to that point without explaining the shift - why is this? Confusing.

What is the specific sequence of menu actions that will allow this item to be added to the library, so I can use in my other plans?

Thanks in advance