No hints by 'fill in' exercises

By some interactive exercises, Xerte gives hints away when the answer is not filled in correctly after a few attempts. Is there a way to avoid or delay this ‘help’ from Xerte?

There is an optional parameter 'Show Hint' (or 'Toon Hint' in Dutch) which by default is switched on.

Choose the optional parameter, and switching it off should do the trick.