CleanupDraftingElements addin is a new addition to dpStuff Revit Utils 2016. It piggybacks on another Revit’s missing functionality of being able to “Select All Instances in View/Project” that is inaccessible to drafting lines. CleanupDraftingElements comes in especially helpful in cleaning up your project after it was “polluted” by CAD exploded drawings and details. As you probably know you end up with numerous new line styles, one per each layer, and no quick way of tracking down those lines by type.
So, it is pretty straightforward. The addin allows you to check-mark select all drafting lines (that aren’t part of a group) by linestyle and convert them into a linestyle of your choice. This operation can be done either globally for the whole document or just for active view. On the left side user selects linestyles to convert from and on the right side user selects a linestyle to convert to. In the middle is the conversion button that executes the operation.
Same exact thing by the way can be done for Text Notes as well.