sashaa99:
The "All Occurences" option can be found here:
1. Click on the "Section" you want to hide/unhide, add a "Rule"
2. under "Conditions" --> "Select a field or group" -->Select the multi selection box you want (in my case, it's called "AVMultiChoices", the "All occurences of [Multi Choice Field name}" is under "Select" drop down menu as shown below.


Hope this helps,
Hong