I'm looking for some advice please ...

I have a master form with several subforms.  Depending on choices made from dropdown lists, t hese subforms are hidden or shown.

If a user enters some data into a subform, then changes their mind and selects another option from the master form; how can I clear any entries they've made in a subform from the master form so they don't get persisted?

Many thanks indeed for your help!

/Chris