I recently downloaded V2.1.3 of Librecad for home use. My work background is 30+ years of machine design using Bently Microstation. I have several issues I haven't been able to resolve. They involve changing the drawing preference units. I have changed both the application and drawing preference units from mm to inches. When I draw, all inputs are still in mm, and when I dimension the part, the dimensions are in mm. I also have not been able to edit the dimensions. I have been able to edited text, but not dimensions. Any help would be appreciated.