Wondering if anyone has managed to get this working with 5.4.2 (or the latest 5.4.4)? And if so, any chance they could share what they did, as it would be most appreciated. Seems like NT hasn't been active around here for a while (hope they are alright).
This plugin is most useful because it allows you to not just use Hammer, but also Radiant (which I have used on end for many years, it is my go-to for level geometry). So it is a shame to be a bit stuck for the past few months not able to use it with my project, which I updated to 5.4.2 - something I cannot really back track on now.