I will answer some of your questions
1) the obj models sometimes do not load because they are very heavy they go over 10mb, sometimes the models when loading the editor do not appear once loaded, in this case play your game, return to the editor and change the scale to the model until make it visible
2) if you want to load a model of several textures, use away builder, assign each part of the model your textures and save your model to "awd", once the model is loaded to cyberix, all its applied textures will be seen, in the case If you want to make the lights of a model that is not effected by the lights, drag the "timeout" command inside the model and assign the time to "3" and finally drag within "timeout" the "set" command and the value of the set command set it to Lightpicker and under Lightpicker type or select the light you want it to be, made by the model
Greeting, Godebex games