is their a way using python script to apply custom properties of objects based on properties located in blenderbim addon ?
@Hamza_Laalaoui, Is your question about whether Speckle reads properties added in the BlenderBIM plugin? Or do you want to use Python to augment BlenderBIM objects once they are published to Speckle?
While data changes to objects once they are in Speckle are certainly possible, I don’t have a good testing record to show whether these are respected if you read the Speckle model into BlemderBIM.
Any more clarity from you on what you want to achieve would be helpful.