Hi Zoe and Arnold,
I’d been using this script for the runs I was doing a little while ago, and I think there are several versions floating around. For using the umfile and um_fileheaders modules, using:
module use ~access/modules module load pythonlib/umfile_utils
was working for me a little while ago, which I saw over here.
There’s also a version of the script that @tammasloughran put together which lets you set the random seed. There can be a couple of clashes with module/python versions when using this version though. I had some notes here based on Tammas’ advice going through what ended up working.