Erase all elements at the same time to use a elements template instead

Hi enfold-team,

I searched for my question, but could not find some answer.
I builded an element template which is now showed in the right upper corner in “Templates”.
Now I would like to use this in some already prepared page with old content of old elements.
When I push this “Templates” and I choose my template to put it on the page its putted
behind the last element of this page.
This makes sense so far.
Now, if I have about 10 or 20 older elements which I want to remove to use the template
instead of them.
Is there a chance to remove all old elements at the same time (with one wipe), something
like a “clear page” but to keep the Parent and so on…?
(instead of deleting each element by clicking on its “x”)

Thanks
promhock
(schubi)