Thank you @woei, thats exactly what I need!
Since I want the switch the cursor only over certain elements, I have to use Ord2Enum and leave a second SetCursorType next to it for reference, but thats okay.
Is there a reason they are in that specific order? I would suggest maybe having No as the first option, Default second and then just doing them alphabetically. But thats just to make it a bit easier and with the simplest switching of Ord2Enum between 0 and 1 would just show the cursor or not. In the DX11 renderer the cursor display has to be set to enable first, which is off by default.
Anyways, this is the first important step to building proper GUIs in vvvv, so thank you very much!
ps: noticed a bug that I cant explain right now. After adding the Renderer(DX11) and pressing Alt+2 vvvv immediately crashes, but only in the help patch, otherwise it works as expected!?