Hi Svein, Thanks for this suggestion. Yes, this kind of functionality would be useful when working with architectural models because spaces are quite often not needed when checking the models in Tekla BIMsight. At the moment, you can use saved views, which store information for later use, for viewing the model without spaces. Hide first spaces with the object browser (right hand pane) then save a view for later use by clicking the green plus symbol in the bottom left corner, and then you can open the saved view by double clicking the view. In this way you can easily restore a situation where the spaces were hidden, for example after opening the project. Thanks, Heikki