I suggest you install Vsig for Windows on your Mac, running it on any virtualization software as I have been doing for over 10 years now and use it as a reference in your design, side by side to it. You can quickly understand what needs to be there and/or what could be improved. What I remember about vSigX is a major lack of features back then…
The problem in looking for suggestions here is that almost nobody runs vSigX so we can’t rally make comparisons and provide you the right feedback.
