To clean up your 2D linework, select all the lines, go to Edit > Reshape > Linework Consolidation. . . This activates the Linework Consolidation Wizard which takes you through steps to clean up your 2D lines. Very handy for cleaning up imported 2D Details or Survey Drawings.
The NZ template has 2 pens called Twink(202) and Twink Thick(203). These pens can be used for masking lines in your project. Video here
If you are using the Cadimage Door tool and wish to edit the position of a Sliding door, or pocket door opening direction arrow just go to Settings>Display Options>Plan View> Arrow Styles.
I used to get very frustrated having to use fills and lines to show simple things like channel drains. So I came up with a linetype of my own that would look rightish and this is how I did it. I started by drawing some basic straight lines to show the shape I wanted Once
If you want all the Line Tools to use the same lines (i.e. the same line that you just used) open the default settings and tick Uniform Settings for Line Tools. Now if you set the line to dashed and Pen 65, and go to the Ployline or Arc, the line type will be dashed