Looking up online I only found a way to export a Revit file to IFC using the settings inside the Revit File already.
Is there a way to export an ifc file from a Revit model using a specific settings (not the settings inside the Revit model)? (For example, exporting to IFC4 with 1st level boundaries)
Inside a Revit file there is an option to export settings and then load them.
Is there a way to use this settings file automatically on a different Revit file that does not contain this settings?
I assume the export you refer to is built in to the Forge translation system, cf. Supported Translation Formats.
In that case, I do not believe that you can modify the standard settings.
However, you could achieve what you want using the Forge Design Automation API for Revit instead.
In that case, you could implement a .NET Revit add-in that applies the required settings and launches the export.
That add-in can then be re-packaged for use in the Design Automation API framework, for real-time online web access.
Here is an example add-in IfcSpaceZoneBoundaries that I created to retrieve IFC spaces and zones and their boundaries.
For more info, please refer to Design Automation API for Revit or DA4R.
