Single Calendar Picker

Dear all

in the Vizlib selection bar, can you think is it possible to have  an alternative selection mode where previous selection is disregarded and the new one applied.

I explain, in the "Retail" we did some daily analysis to compare the same day in the week between the current week and the same week last year.

So users did not want "to add" selection date to the current selection but remove the previous one and apply the new one.

regards

Benoît