That's pretty close.
1. Runway heading in COURSE.
2. ILS frequency in NAV1 (NAV1 is the only one that can control the autopilot. I usually keep the local VOR in NAV2.
3. Switch your autopilot from wherever it is (heading hold or course hold) to approach hold (APR). That's what will lock you on to the ILS beacon. Remember to intercept the beacon from below.
Check out some tutorials.
Here is a nice complicated one.