How to get wall layers to extend above ceiling finish

[Bergie3941]

I have a project where a corridor has a dropped ceiling, but the hard ceiling and wall drywall is the fire-rated layer.  This needs to be continuous up the wall and across the hard ceiling.  The drop ceiling is framed in after the fact.  When I use a ceiling plane or the ceiling finish to add layers for the drop ceiling, the wall drywall stops at the ceiling finish, not extending above to the hard ceiling above.  The attached image shows the scenario. The yellow and orange are all part of the ceiling finish, but the orange is the dropped portion.  I need the green wall layer to extend up to the yellow.  I'd like it to be a ceiling surface for ease of placing light fixtures and other ceiling items. Any ideas on how to accomplish this?

[robdyck]

You could turn your walls into pony walls using the same wall type top & bottom, with the wall split elevation set to match the ceiling elevation. Maybe not ideal but it seems to work for me.

 

[Bergie3941]

Thanks, Robert, that worked for me. A little bit of a pain, but I'm not sure there's a better solution.  Much appreciated!