Show the position of vertical translation axis. Press the arrow to change the vertical translation axis.

You can use this button for 3D perspective or elevation.

The available snaps are:

Plinth down, straight under the plinth, the base unit
Box down, between plinth and unit
Center, come from the center of unit
Box up, between unit and worktop
Worktop up, the top of unit.

In case the items have not wortop and plinth (for example wall units), the options Plinth down and Box down have the axis in base of item.

Also the options Box up and Worktop up have the top side of item.

The procedure is: Select the item you want to move and then left click to Vertical translation. The item starts to move vertical. Press the arrow “Active vertical snap”. From the list below select one option, for example “Box up”.

The vertical translation axis has been moved to the top side of item.