In RH8, I imported a DOC file that has multiple procedures onto one RH topic. In the "Conversion Settings" dialog, the "Convert Word List to RoboHelp List" was selected.
Instead of restarting after each procedure heading (as in the DOC source), the numbered list is continuous.
You can try using "Conver word list to HTML list" or deselect this option to convert list to text. The numbering gets restarted if you use either of the two options. Please see if that meets your requirements.