MS Visio 2013 vertically centre data in a shape after deleting all other data

[Belachenko123]

Hello,

I am desperately trying to find out how to vertically centre a data in a shape.
Concretely, I have an org chart in MS Visio 2013 and use a vacancy belt in order to show just a name (no title, no other information). Now, I already deleted every other data through 'define shape data', but still, there is this placeholder under the name which is empty and I cannot get rid of it!!!
It causes my name to move up in the shape and I am not able to centre it, to move it down. Please find an example attached.

I would be so grateful for your help.

Many thanks in advance,
Katharina