Set multiple styles to a single RH style on word import

Hi all,

Used to use RH for a while on version 8. Now back to use it again with 2015 but I'm a bit rusty.

I've set up my new project, created my CSS just how I want it with the styles I've got. My Word doc has several styles that I want to bring in to a single style in RH. e.g. I have 3 'versions' of a normal style that I want to all map to a single RH style.

Not sure if this is possible, or if I have to cleanse the whole Word file instead of all these style variations. The option to select a CSS for Style Mapping when running the word import is always greyed out so I can't select my own CSS here, only the RHStyleMapping.css.

Ideas? Or do I have to spend some time cleaning Word docs?

Thanks,

Nick