Design Preview is not working for label window

Hello All,

I am new to power builder.

I am trying to use Design Preview functionality to change attribute of column at run time. It is working fine for free form data window but when I tried to use same feature with Label type Data window then only X and Y attribute for column are not updating while moving column.

Sequence >> Select column and make column as movable and then try to move column by drag. It is not updating X and Y position and all other attribute are updating properly.

Can any one tell me why it is not working with Label type data window or what is the other way to do it ?

Thanks in advance...