Equipment property referencing

Hi,

I wonder if it's possible to reference to a parent equipment properties ?

For example, i would like to use the tagprefix of a parent equipment in an item of my equipment type.

My hierarchy could look something like that:

- PROJECT

- Group1

equip1

equip2

- Group2

equip1

equip2

So the variables tag of my equipment look something like: Group1_equip1, Group1_equip2