Pursuing multiple war goals?

Currently in a game to get re-acquainted with the game before 2.2 comes along and changes everything, and I've had to cede some territory to a neighbour after a war. Said neighbor has been severely weakened by another war, and I want to take advantage of this weakness to get my territory back, and also I would like to put them into Tributory or Vassal status. Given the way war goals work in Stellaris, do I need to do this in two separate wars? Will my claimed territory go to me if I use the Subjugation goal, or remain with them? Can I demand a system transfer after the subjugation?

I seem to recall that if you Settle Status Quo in a Subjugation war you get any of your claims, and the other territory becomes a new state.