Miniature,
you can move any selection over a displacement from the first clicked location A in 3D space to a second clicked location B in 3D space. Depending on what you move you select a logical point A and a final logical point B.
In your case select the component "person" then select the 'Move' tool, click on an endpoint (A) in his foot and click on an endpoint (B) on the second floor.
Note that A can be choosen as a point 'on face' or 'on edge' or 'midpoint' or 'endpoint'.
So can be the second point B a point 'on face' or 'on edge' or 'midpoint' or 'endpoint'.
So looking at the popup gives you more controle over the exact displacement.
I was also going to suggest the use of [x,y,z] for moving to global coordinates
and <x,y,z> for relative displacements, relative to the startpoint.
(with some keyboardsettings you need to replace comma with semicolon)
Unfortunately I see no difference between [x,y,z] and <x,y,z>
For me both operate in a way relative to the startpoint, not to global coordinates.
Another thing is you can create components with the property: 'glue to'
In your case the component "person" should have been created 'glue to' horizontal with its origin in an endpoint in the foot.
This allows you to anchor the component to a horizontal plane.
Wo3Dan