Scaling Blocks in LD Assistant & AutoCAD
Working with Metric and English Blocks in AutoCAD or LD Assistant.
If you use blocks that were drawn in METRIC, you will need to scale them.
With LD Assistant and AutoCAD, the program can do the work for you.
1
The next time you have to use Metric blocks try this.

Perform a right mouse click on the drawing area. This will bring up a menu. At the bottom of the list click on options, then click on the User Preferences tab.

Looking at the picture to the left, you will see Highlighted in red information about the Block Navigator/design center.
2

By clicking on the drop down arrow, the incoming blocks units can be changed to Millimeters. Now, when you drag a Metric block into the drawing, LD Assistant/AutoCAD will scale the blocks from metric to English for you.

Remember to change this setting back to INCHES after you have finished working with the Metric blocks.