create a 'Hitpart' eventHandler on a building with doors and add something like
{

_array = _this select 0;
_build = _array select 0;
_selection = (_array select 5) select 0;
_hitSelPos = _build selectionPosition _selection;
hint (str(_hitSelPos));

};

as the code to execute when the EH fires.

notice how the hint returns [0,0,0] which selectionPosition does when the selection is incorrect.

The selectionPosition command works correctly when you pull up the 'position' variable from a user action (for the doors) or the same for the class for smashing glass. perhaps have the EH return this string instead of on that i can't for the life of me seem to find correlating anywhere in the configfile?