For dps and tanks to heal in solo duties, give them the full heal button that is used in the monster hunter event and put a cool down on it.

That will address the self healing needs for solo instances but it does bring up the topic of potions in general.

Why don’t we bring back strong healing and mana potions that can be used out of combat without CDs for overworld (unavailable for use in instances) healing?

It would help everybody, especially the crafter and gatherers.