Extinction curse - resonant reflections

[Happydevil43]

Any idea how (or if) you can add the resonant reflections from Extinction Curse ?

I just know my players will want to add it in:

REFLECTION OF LIFE RESONANT REFLECTION 5
HEALING MAGICAL
You regain double the normal number of Hit Points when resting (meaning you regain double your Constitution modifier multiplied by your level). The healing you gain from long-term rest is similarly doubled. In addition, you can focus this healing energy to accelerate your body’s natural healing processes even further.
Activate [two-actions] envision; Frequency once per day; Effect You gain fast healing 3 for 1 minute. This amount of fast healing increases by 1 for every 2 levels you have beyond 5th level.