Conditional If statements on woocommerce

Hi,

Is it possible to have conditional if statements in woocommerce if for example. user selects on variation from dropdown then something else will show.

e.g. for printing An A2 Page in a quantity bracket of 5-49 copies. will then add a minimum of 5 to the quantity field. etc? or if select variation A then variation drop down 1 shows. if select variation B then variation drop down 2 shows . (i.e. different drop down / options appear as a result of clicking one option over another)

Thanks

Tom