So... Clerics get something called Healing Hands, which would be GREAT to combine with Heal, especially the two action version giving 1d8+Wis to all allies within the 30 foot radius (not counting the damage). Unfortunately, 2-Action Heal requires Somatic and Verbal Spellcasting Actions already, meaning it would have 2 Verbal Components to the spell. Does that mean one cannot combine Healing Hands with Channel Energy? Does this mean no 3 action channel energy to buff the entire party with Heroic Recovery?
Also, is there any way to Selective Channel a 2-action version of this ability?
There is no prohibition against repeating types of casting actions. (It's actually pretty easy to end up with a Somatic/Somatic/Somatic spell what with substitutions and metamagic.)