Sadly, no, there is no such option - the area is rather large, really, and the concrete flooring in that particular spot is meant as a part of a project to provide them very different terrain to walk on - and this is the hardest of all areas. So for now Snickers will be in the sand paddock whille the herd is standing on the concrete, and turned out in the main field, when the herd goes off to graze in the forest. That was done today and he was able to follow them normally and even climb down to the river to have a drink (it's a rather steep and muddy slope there, so he was wary to go down when the pain was worse).
Wow, that is a great site, I will definitely bookmark it - thanks again!
I have come a long way, to surrender my shadow to the shadow of my horse.