Dear Hans,


Thank you for your explanation.
I just wonder \alinghere can be applicable to multiple formula.
It is OK to use \NC \NR for multiple formulas.
What probably can be done, is to let the next formula start with the align of the previous one .. Mikael can add it to our todo


Thank you for your concern.
When we write  two long formula, I think that to use "\alignhere, \breakhere" is a little bit simpler than use \NC\NR.
We may write them to use \startformula…\stopformula twice separetely. 
But, then the alignment of two formulas may be different because formula’s alignment is midaligned. 

Thanks again to add it todo list.

Best regards,

Dalyoung