Classification Manager Add-in _ IFC export

[mairh_tsek]

Hello all,

I use the classification manager add-in in Revit 2018.

I used a custom excel file with the classification system that I need and in Revit I created the equivalent parameters.

In the first image you will see the classification systems that I assined in a wall.

I want to export these parameters in an IFC file. I tried first to export two of the four custom parameters that I created in Revit (image 2) but in Solibri I get only one (the code parameter - image 3 )

Question:

Do you know how/if it is possible to export all the custom parameters that I created in Revit in a IFC ?

Thnak you in advance !