For the mouse binds, I would suggest just place the similar skills from your WHM setup for start. And then adjust if needed as you unlock more skills. Afterall, only you can decide if you prefer same setup for the ease muscle memory across your healers, or you don't mind having them differently.

1. Benefic (Single target heal)
2. Helios (AoE heal)
3. Aspected Benefic (Regen/Shield)
4. Malefic (Damage spell)
5. Combust (Dot)

Shift+Press
1. Benefic II (ST heal)
2. Aspected Helios (AoE HoT or shield)
3. Esuna
4. Gravity (AoE damage)
5. ???