1. Sure, ill add an indicator.
2. Yeah, I knew about this one. If you remove the snow with a shovel (which is not in the game), the conveyor will reappear as it is under the snow. The walls are fixed in 1.48 and i'll make it so snow tiles break into snowballs when you build on them so this can't happen with conveyors and other towers low to the ground.
Thanks again!