Tomorrow & close

[fritz@xxxxxxxx]

I'm experimenting with a daily system that bases breakout entries 
off tomorrow's open, e.g.:

buy at open of tomorrow + Brkout*Range stop;

I'd like to exit this thing at the close of the entry bar, or better yet 
at the close of the bar AFTER the entry.  But any attempt to do 
this gets an error that says I "can't use CLOSE and TOMORROW 
in the same system."  I can't even do something like this:

if BarsSinceEntry = 1 then exitlong at close;

...which is just exiting on today's close, when "today" is the first 
bar after entry.  

How can I do this?

Thanks,
Gary