If you do not want to get automatic labels within your drawings for parts which are hidden (but displayed e.g. with hidden lines), there is a default to modify in the Management Tools.
This default is named "Enable annotation of hidden objects" (in the English Europe version of Advance Steel) and it is situated in the "Drawing-Labeling" category. In order to disable the creation of the labels for hidden parts, just put this default at 0.
See attached picture showing the result when changing this default.
Attachment: AS - Default to have no labels for hidden parts.jpg