Hi ndrakey, re:

> lets say i have two cubes where I select the front 2 faces and convert it
> to select the 2 cube`s complete faces

Use "Select All" Ctrl+A to do that - if you have a face or edge sub-object selected, you can then use Ctrl+A / Select All to select all faces or edges of those objects. Once your selection is on a sub-object, select all will see that and select the all the same sub-objects without selecting other top level objects.

So with your cube example, if you have 2 separate cube objects, then you select one front face on each one, press Ctrl+A and then the selection will expand to all the faces on those 2 cubes.

- Michael