I am using TurboCAD Deluxe 2017 64 bit version 24.0, Build 42.4.
I have found that the Modify tools, for example Trim, Extend, etc. do not work on objects that either have a pen width property or pen width set for the layer. The system will not let me select these objects. My work around is to set pen width to 0 but I have a lot of individual objects and it is time consuming. I've loked through some of the forum topics and help but don't see a solution.