The Load Autodesk Family tool now allows you to load more than one family at a time into your model.
In the Load Autodesk Family dialog, select multiple families to load more than one family at a time. Click each family individually or use Shift+click to select multiple adjacent families.
When you select more than 50 families, performance can be affected. Consider installing content locally instead of loading from the cloud. See Download and Install Revit Content.
A message is displayed when more than 50 families are selected. The message can be suppressed with an INI setting. See Misc Settings in Revit.ini.
For additional information, see Load a Family Using Load Autodesk Family.