On Wed, 6 Feb 2013, Troy Henderson wrote:
I would like to make a "row" of a \startalign ... \stopalign "hidden". The following fails.
\starttext \definelayer[hiddenlayer][state=stop] \startformula \startalign[n=3,align={right,middle,left}] \NC a \NC = \NC b \NR \setlayer[hiddenlayer]{\NC a + c \NC = \NC b + c \NR} \stopalign \stopformula \stoptext
Layers would not work for something like this. I usually use the attached macros for stepping: \environment steps \starttext \StartStepping 2 \startformula \startalign[n=3,align={right,middle,left}] \NC a \NC = \NC b \NR \STEP 2{\NC a + c \NC = \NC b + c \NR} \stopalign \stopformula \StopStepping \stoptext Aditya