JTB Batch Change initially comes with a list of sample drawings. These drawings are copies from AutoCAD's Sample folder.
Note:Column C is for error messages that happen at running time. Sometime, some drawings might not be found, or some drawings might be used by another application. Sometime, some drawings might required a newer AutoCAD version.
You can also use filter box to filter names.
For example: If you want to see layer with ARCH prefix, you can enter ARCH* to the filter box.
At last, you can click "Close", or "OK". "OK" command will copy the current result to D column. It will be useful later.For example: you want to perform rename, or change properties of layer with specific name. Rather than typing its name (which often lead to miss-typing), you can just copy it.