I can?Lt see my SOP geo

Greetings
I have new issue regarding Sop
I work through SESI
staircase modeling video lesson
and I can?Lt see my geo
the steps:
I create new geo
go in SOP
delete file, default geo in network editor
tab>type tube
see tube in Sop viewer
in viewer tab> type box
got box and could see it
in Network editor box has display flag turn on
and tube has footprint flag turn on
but I couldn?Lt see tube
I do the same with 5.5 a and see both
but not with 6.1
Should I use merge or is that new 6.1changed feature?

cheers
Ben

are you appending the box to the tube or creating a new box…if you're appending then it is creating a box that bounds in the incoming geometry…