To update the Family geometry without placing instances uncheck Place Instances.
Place an existing Family using Rhino Blocks
Select from the drop-down list the .beam containing blocks information and the Family to place using blocks transformations. You can use both native and imported Families.
If a Family is set to Always Vertical or is not Workplace Based, not all the blocks transformations will be applied to the object. Only rotations in XY plane and translations are permitted for these types of objects.
Make sure to apply to Rhino blocks the transformations that are allowed by the Family you choose.