"What signs/symptoms would indicate a need for digestive enzymes?"
To be used to transtion to a balanced state, not a quick fix for any symptoms, althohg many do this.
"at what point in cleansing/healing/detoxing would systemic enzymes be introduced and for how long?"
They would be introduced at the start and used until you had good flow, that digestive and liver function was optimal, and you were on a balanced (raw vegan living foods diet). Time would vary. Go by how you feel.
"How long should the okra pepsin be used?"
It would be used for a week or two and within the beginning. This can be revisited again if needed.
"at what point while taking okra pepsin would colonics be most beneficial?"
Colonics would be benefical through many phases of the detox including during use of okra pepsin.