Command: TCOUNT
Select objects: Use an object selection method
Sort selection set by X, Y, or Select-order <current>: Enter an option or press ENTER

Sorting Options

Enter count [Start, increment] <current>: Enter the starting number and increment, separated by a comma, or press ENTER

Placement of text- Overwrite/Prefix/Suffix/Find&replace../ <current>: Enter an option or press ENTER

Placement Options

Usage Example:

Starting number = 1, increment = 1 added as prefix:

Starting number = 20, increment = -10 added as suffix:

Starting number = 2, increment = 2, Overwrite: