T splines plugin compatibility

I’ve downloaded and installed the t splines plug in for rhino 4 from autodesk:

I have rhino 6, trial version at the moment. However, im unsure of where to find this fucntionality in rhino? The t splines tab does not appear at the top tab. Is there a particular command I should enter to display this tab? Maybe it is because it is for rhino 4 and not 6? If so where would I find the equivalent online for rhino 6

T-Splines for Rhino is no longer supported I’m afraid, there are plenty of threads on this to prowl through.