Why do I get error messages while choose the inside of my drawing in AutoCAD Mechanical?

The cause of the problem is still unknown, however, there is a solution for it. One method is to turn off Amshide, save the drawing, and open it again to run Match Properties. The second method is to change the Command Preview variable to zero.

Right-click in the empty space in the drawing to open the context menu. Click on the Quick Select button. A Properties List opens from where you choose the Layer option.

To change planes in 3D AutoCAD R14, follow these steps:

• Open the drawing in AutoCAD R14
• Go to the View menu
• Select the 3D Views option and choose Viewpoint Preset
• Then, select the plane, from viewpoint preset

The hide situation may not be working with the dynamic blocks in AutoCAD mechanical because the dynamic blocks fail to perform.

To change Entity Filter/Registry Filter settings in AutoCAD Mechanical, follow these steps:

• Open AutoCAD Mechanical and go to the Tools menu
• Select Options from the drop-down menu
• Go to the Options dialog box
• Then, move to the Selection tab
• Adjust the settings for Entity Filter and Registry Filter accordingly