The indicator new_statement, don't work anymore and for now I use a variable that is set at the last historic value, ie
myvar = hist_1_pl,
and I use a condition mayvar not =hist_1_pl to read the new value.
This gives problems when hist_1_pl=hist_2_pl.
I woundering if somone got a better solution I think I had one before using time but I don't remember.