3ds max user want to find Refine and Connect tool in blender Hi I'm a fellow user of spline modeling and I cant find the &quot;refine and connect&quot; from 3ds max in blender
this option just create a line/segment between two points/vertices of a curve/spline
so their is an option like that in blender  ? or even an add on ?
edit example of 3ds max refine and connect 
edit to @gorgious i add two  screenshot
As far as I know there is no such tool in Blender, mainly because curves in Blender can't branch.
One workaround is to select an vertex you wish to connect beforehand, duplicate them with ⇧ Shift +  D, Right-Click to cancel and leave them in place.
Then just press  F a bunch of times to connect them.

Beware that Blender doesn't really memorize selection sequence, the connection order will depend on the spline index the vertex was derived from, so it may not always yield expected results if the original splines were not created in the same order you want them connected.
Another potential caveat is that splines must be all of the same type (bezier, poly or NURBs), and belong to the same object, otherwise you will not be able to connect them.