Open the AVC Options Palette on the "Numbering by Curve" tab, select the appropriate numbering style or create a new one.

Draw a curve along all the objects that need to be numbered - it will be a guide. It is advisable to draw a curve with a reserve in length so that it goes beyond the boundaries of the outer objects.

Call the CNum command.

If the object selection option is enabled, the program will ask you to select all the objects that need to be numbered. You can select with a frame - unsuitable objects will be filtered out. You do not need to select a guide curve at this point, but if you accidentally come across one - this is not a problem, the program will not number it. In the command line, you will see two request options for selecting a style by number from the command line and for opening the program settings window. You can select objects before calling the CNum command.

Then the program will ask you to select a curve. You cannot select a curve before calling the CNum command. The selection must be made in 1 click. The point on the curve where you click is important for the numbering order. You cannot select several guide curves at once. Click closer to the end of the curve where you want to start numbering. For closed curves, it is advisable to first understand where their starting point is (and all curves have one) and click on the desired side of this point. For a circle, this point is always near the right grip. For a ray, you cannot change the numbering direction.

If the object selection option is disabled, the program will start searching for them by intersection with the curve. This is a long process because the program needs to go through absolutely all objects in the model space and perform a complex procedure for finding intersections. The drawn-out process can be interrupted by the Esc button. Please note that the objects must intersect the curve in three-dimensional space, that is, objects in different planes along the Z-axis will not be found. For texts, an intersection with the text editor rectangle is searched for, and not with the contours of individual letters. Therefore, even those texts that the guide intersected by spaces and empty "tails" will be selected. The intersection search procedure works with a Ray as with an XLine - considering it infinite in BOTH directions.

Optionally, the program may ask to enter another line of text - the numbering prefix.

Next, the program will find the geometric centers of each object and project them onto the nearest point of the guide curve. For objects outside the guideline, this may be the same point at the very end of the line. Therefore, try to make the guide curve longer. Next, the program will write numbers into one of the object's properties (depending on the settings). If several objects hit the same point of the curve, then the numbers are given to them completely chaotically, you cannot influence their numbering order in any way. If the object does not have such a property in which the number must be written, then the object will not be numbered, but the number will be skipped.

Watch the command line - the program makes a detailed report on its work and will definitely write why it was not possible to number any object.

The installer that ran when you downloaded this app/plug-in from the Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.

Use the installer from the Autodesk AppStore or an online installer.