Hi...
There isn't an option to toggle the transform lines off but I've never encountered a problem like you show in your screenshot.
Are you working with a very tiny prop? It's difficult to tell from your screenshot because there isn't a character to compare to, but compared to the grid sizes it seems the prop is really small.
Normally when you work with characters and props at the default sizes you shouldn't find the transform lines and dots obscure the prop like that. You could try resizing your prop which should help and of course you can always zoom in (Z) close on the prop while you animate it and then reset the view once complete.
Peter
Forum Administrator
www.reallusion.com