When to add Camden tablets?r

[Victorthenazarene]

when is the best time to add Camden tablets? when the solid fruit is still in the must or after straining? Doing a mango/pineapple wine. Going to freeze my fruit first, should I still simmer must?
how long in between adding Camden- Pectic enzyme- yeast? Last one should I add white grapes or black tea for tannin?