Open Bridge Modeler Editing The Unit Type

Question

I am trying to edit the unit type using properties. Sometimes I am able to and other times I am not. Does anyone know why? Any help would be appreciated. 
 
 Thank you, OpenBridge Modeler v10.11.0.38

Sri · Answer

Jeremy, 
 I don't think OBM should allow you to change the unit type from one bridge type to another in OBM currently. There are bridge type specific details which get added internally, and switching bridge types may cause issues. We will need to grey out this field in the properties window to stop the user from doing this. 
 Thanks, 
 Sri