I would like to have the ability to draw detail lines on a locked 3D view. As we've been using the 3D view for our plumbing isometrics and other design clarifications, there have been times where some additional detail would be nice to add using detail lines instead of relying solely
on the model. Additionally, the use of symbols for annotating would be useful (such as a point of connection symbol).

Tagging elements needs some adjustments as well when you use the Displace Elements tool. The tag command can't find elements that have been displaced. Displacing an element after it has been tagged works, but it doesn't remain attached and has to be set to Free End and manually adjusted to point at the element.