Floating Action Button sub menu

How to create Floating Action Button sub menu (as mention in pics) ?

This can be emulated in Thunkable X. To do this, on the Advanced tab, set absolute positioning for Column and play with the edgeOffsets, margins, zIndex, Colors, element visibility properties. It will look crooked in the designer view but the screenshots from the phone are shown below.

For your experiments, I made a small example here