There's a couple steps there you could probably eliminate.
You don't need to create a connecting line to OwnShip before pressing I to generate the intercept. Basically, it assumes if nothing is connected to a contact and you press I it knows to give the intercept in respect to OwnShip's position/speed.
You don't have to delete the initial observation nodes, unless you really want to.
If you haven't tried version 1.1 yet, it has a data entry feature for the nodes. Rather than relying on moving the graphic shapes to position the nodes, you can just select a node and directly enter, speed, bearing (to or from), heading, distance, etc in the Unit Data window. Might be a little less cumbersome than drag-adjusting node positions.
Some of the stuff you talk about I want to try to expand on with some new features in version 2.0. For instance, an intercept point will behave similar to a node in that you'll be able to mouse-over it and press the spacebar to just connect it to ownship, display bearing, TSD, etc.
...and maybe a few other surprises.
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