Change chapter number as displayed in LyX

[Daniel]

On 2020-03-27 01:55, Matt Barnard wrote:
> Sure, see attached. Adjusting the LyX numbering like this is something 
> I've found myself wanting to do a number of times.
> 
> Thanks for your time,
> Matt

My guess is that my suggestion will not help because your actual case is 
more complicated. But it seems in your limited example you could just use:

Counter part
   LabelString "10"
End


Daniel