Scrollable ion-fab-list

Hi! We need to have a ion-fab-list with a lot of ion-fab-button and the list is going outside the screen on top.
Is it possible to add a scrollbar on it?
I tried i some ways, like adding a overflow-y: scroll on ion-fab-list, or wrapping the content into a div with overflow-y: scroll, but all is not working.
The other way is to develop a custom component, but ion-fab is complex and well done…

Do you have ideas?
Thanks in advance!