5876052170
<model>
<path>some/model.xml</path>
<condition>
<property>model/switch</property>
</condition>
</model>
Of course, one could add "select" animations for all <object-name> in the
<model>, but this is tedious and can hardly be done e.g. for all
objects in all instruments in $FG_ROOT/Aircraft/Instruments-3d/ etc.
The feature will be used in the bo105, so that civilian variants can
have a HSI instrument, where military variants have a TACAN etc.
[ Nothing here at this time. ]