Detach a collection from layout element

Design help CMS
1

image

Now, in order to detach the collection, I manually remove the CMS parameter from each element, the field of which the uncoupling function becomes available.

Is there a hot key to quickly detach a collection from an item? How is this implemented in a Symbol (Shift+Command+A)?

2

No Shortcut (Nice idea but sound little complex to accomplish). List her:

Delete/unbind everything inside mannualy. Or just create new collection list.