Hi! Try this if you can.
1. Create a text box and name it "parent".
2. Create three other text boxes and name them child_1, child_2 and child_3
3. Cut and paste the three "children" into the parent as they where text objects.
4. Create a button and make it interactive in order to hide the parent.
Result: When you click the button the parent disappear but the children remaines :(