like more tools for modeling and such

When I try to drag these types of files from Explorer to my project, my program crashes (when using ".txt") or does not respond (when using ".png"). I tried reinstalling it, but even that did not help. Can you please help me solve this problem?

I have a 128 x 128 texture but I keep getting “project not recognized” when I drag and drop it in

1) is it possible to copy multiples hapes and paste them all at once? 2) when trying to import custom textures, my files are to big, any tips? (i am using paint.net with PNGs and low sizes) 3) will it be possible to increase the overall engine so we can do slightly bigger models? 4) can you customize your controls? 5) to the dev: are HUDs in different styles planned for the future? (no pixelated font for example) 6) will there be more updates in the future? (new shapes for example?)...

as is above, I'm trying to wrap my head around the included guide but I'm a bit dense, is there a helpful tutorial video I could be directed to?