Are there any plans for adding the ability to crawl in 1 block high openings?

[Devkrin]

When I'm mining it seems this would be a very nice feature! It's just kinda anoying to me that I have to bulldoze two block high openings to get that single height ore. IRL, new coal for example was often mined by crawling into a 60cm high shaft for 10-20 meters to see if it was actual worthy to dig it out or just continue looking. So why not add it in game?