Function Point Size

Cong Burn's icon

Is it possible to change the size of a point in [function]?

I see you can change the colour but ideally I'd like to have a bigger point thats easier to click and drag without missing

slo ~|•'s icon
jbl's icon

I don't understand why there is no attribute for this in the inspector of the function object. There's one for line thickness but you can't change the size of the point? It's getting extremely hard to use on screens with larger pixel density!!!