How to put in bar count when there's no region involved

Is there a way to create the same bar count every x bars over identical bars showing actual content that there is in a bar repeat region?

Since there’s apparently no way (yet?) to have bar repeat regions show in the parts but the bars themselves show in the score, I’d be ok with just using the bar count every two bars in the parts without setting a bar repeat region. I just can’t find a way to do it.

Thanks much.