Radiance2216304E Cordless Dockside Flatstick Bamboo Roman Shade - 29 in. W X 64 in. L, Cocoa

How does this shade roll up?

What size drill bit? The instructions say 1/16th but that's really tiny given the screw size.

My window measures 48in long, since this comes in 64in do you think it would be too bulky at the top when completely rolled up to let in sunlight?

Can the 23 in shades be reduced down to 17 or 18 inch width? If professional cut...or is the cord in the way?