Thanks again, I have read the note and it is related with the case, but my doubt is,
Do you think that if we select the option "reset realized security valuation", the impairment process will clear the year end valuation of the previos year? So, I can create the impairment for the past year valuation amount plus the present year valuation affecting both the the profit/loss.
Note that this valuation it was done with TPM1, it is a valuation that don´t permit cancelling, and not affecting profit/loss.
Salvador