Any Autodesk® AutoCAD® user should find this program very simple to use if the idea of the program is just to replace a bunch of blocks with other specific blocks.
You can use this program for 100 times. After the expiry of the program, you will receive a dialog showing the serial number (codes) of your PC and my Email ID. Please send me an email including the serial number. After I receive your payment I will then to me send you the full version.
NOTE: you can get the full version of the program before the program expires by pressing the Activate button that is available in the same dialog of the program.