empty values for final concentration of deleted peaks after analyzing batch


I have a problem/bug in my Masshunter I would like to solve. 

When I first analyze my batch and delete a peak of a compound (because it is not present in the sample) the value of the final concentration ("Final Conc.") jumps to 0. But when I then reanalyze my batch, all the values of these deleted peaks (0's) disappear instead of staying 0.

Is there a way so these values would stay 0?

Kind regards,

Achim Hongenaert 

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