Hi everyone!
Recently I've been trying out 'Studio Neo v2' to create some new scenes and so far I am having a blast trying out and experimenting with all the tools and mods the programm has to offer

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I also stumbled across some issues and couldn't find a clear solution in the thread search, so I'm here throwing out my questions, with the hope that some more experienced modders could help me out:
1. After loading a finished scene I've noticed that items and assets that I've used from mod packs are missing and instead are replaced with spheres objects; how do I prevent that and properly save and load a scene?
2. The only way I found to change the colour of items is by using the 'Material Editor'. However, the usage of said editor is very clunky and the changes I've made and applied won't save and are all gone when loading the same scene. I am sure that there is a better way to change colours, but I haven't found the option yet
3. Lastly; where can I find and download more assets and items for the studio? Right now I've been mostly creating environments for scenes/maps and the selection of usable tiles is very limited (f.e. the main folder only offers wood, stone and simple floors/walls, each with only one variation). Is it possible to import assets from the 'Unity Store' into 'Studio Neo'?
These were all the questions. As short info; I've tried running 'Studio Neo v2' in administrator mode to make the save scene to work, without success.
Feel free to PM me if you want, any good solution or help is greatly appreciated!